• 瀑布流 ajax 预载入 json


    pbl.json【模拟后台json数据】:


    [
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            "referer": "http://graphicburger.com/smashicons-300-free-icons/",
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            "preview": "http://www.wookmark.com/images/thumbs/511895_wookmark.jpg"
        },
        {
            "id": "512237",
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            "referer": "http://www.inspirationde.com/image/38001/",
            "url": "http://www.wookmark.com/image/512237/inspirationde-source-of-design-inspiration",
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            "preview": "http://www.wookmark.com/images/thumbs/512237_wookmark.jpg"
        },
        {
            "id": "512412",
            "title": "Bull / Logo Design by simc",
            "referer": "https://dribbble.com/shots/2076196-Bull-Logo-Design?list=users&offset=0",
            "url": "http://www.wookmark.com/image/512412/bull-logo-design-by-simc",
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            "image": "http://www.wookmark.com/images/original/512412_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/512412_wookmark.png"
        },
        {
            "id": "512550",
            "title": "Female Portraits by Maxim Gurtovoy",
            "referer": "https://portrait.photogrist.com/maxim-gurtovoy/",
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            "title": "Card Wallet on Inspirationde",
            "referer": "http://www.inspirationde.com/image/37992/",
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        {
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        {
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            "preview": "http://www.wookmark.com/images/thumbs/512770_wookmark.jpg"
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        {
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            "title": "Vifa Remote | Product Design | Pinterest",
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            "image": "http://www.wookmark.com/images/original/512994_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512994_wookmark.jpg"
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            "id": "511896",
            "title": "Inspirationde - Source of design & inspiration",
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            "url": "http://www.wookmark.com/image/511896/inspirationde-source-of-design-inspiration",
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            "preview": "http://www.wookmark.com/images/thumbs/511896_wookmark.jpg"
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        {
            "id": "511897",
            "title": "physical sculpture of data on Inspirationde",
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            "url": "http://www.wookmark.com/image/511897/physical-sculpture-of-data-on-inspirationde",
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            "image": "http://www.wookmark.com/images/original/511897_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511897_wookmark.jpg"
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        {
            "id": "511898",
            "title": "subcreative_freelance_designer.jpg (1310×5856)",
            "referer": "",
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            "image": "http://www.wookmark.com/images/original/511898_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511898_wookmark.jpg"
        },
        {
            "id": "512044",
            "title": "mercedes-benz and lufthansa collaborate on refining the VIP aircraft cabin",
            "referer": "http://www.designboom.com/design/mercedes-benz-lufthansa-cabin-concept-05-19-2015/",
            "url": "http://www.wookmark.com/image/512044/mercedes-benz-and-lufthansa-collaborate-on-refining-the-vip-aircraft-cabin",
            "width": "818",
            "height": "460",
            "image": "http://www.wookmark.com/images/original/512044_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512044_wookmark.jpg"
        },
        {
            "id": "512128",
            "title": "",
            "referer": "https://www.tumblr.com/dashboard",
            "url": "http://www.wookmark.com/image/512128",
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            "height": "500",
            "image": "http://www.wookmark.com/images/original/512128_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512128_wookmark.jpg"
        },
        {
            "id": "512158",
            "title": "Inspiration - Define a room's focal point with bolder colours - Muuto",
            "referer": "http://www.muuto.com/inspiration/Define_a_rooms_focal_point_with_bolder_colours/",
            "url": "http://www.wookmark.com/image/512158/inspiration-define-a-room-s-focal-point-with-bolder-colours-muuto",
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            "image": "http://www.wookmark.com/images/original/512158_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512158_wookmark.jpg"
        },
        {
            "id": "512239",
            "title": "Inspirationde - Source of design & inspiration",
            "referer": "http://www.inspirationde.com/image/37997/",
            "url": "http://www.wookmark.com/image/512239/inspirationde-source-of-design-inspiration",
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            "height": "481",
            "image": "http://www.wookmark.com/images/original/512239_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512239_wookmark.jpg"
        },
        {
            "id": "512251",
            "title": "Digital Art Vision of Ecuador | Abduzeedo Design Inspiration",
            "referer": "http://abduzeedo.com/digital-art-vision-ecuador",
            "url": "http://www.wookmark.com/image/512251/digital-art-vision-of-ecuador-abduzeedo-design-inspiration",
            "width": "900",
            "height": "601",
            "image": "http://www.wookmark.com/images/original/512251_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512251_wookmark.jpg"
        },
        {
            "id": "512252",
            "title": "Digital Art Vision of Ecuador | Abduzeedo Design Inspiration",
            "referer": "http://abduzeedo.com/digital-art-vision-ecuador",
            "url": "http://www.wookmark.com/image/512252/digital-art-vision-of-ecuador-abduzeedo-design-inspiration",
            "width": "900",
            "height": "900",
            "image": "http://www.wookmark.com/images/original/512252_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512252_wookmark.jpg"
        },
        {
            "id": "512304",
            "title": "Pinterest: Kreative Ideen entdecken und speichern",
            "referer": "https://de.pinterest.com/pin/441212094718364590/",
            "url": "http://www.wookmark.com/image/512304/pinterest-kreative-ideen-entdecken-und-speichern",
            "width": "736",
            "height": "886",
            "image": "http://www.wookmark.com/images/original/512304_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512304_wookmark.jpg"
        },
        {
            "id": "512350",
            "title": "",
            "referer": "http://www.simkom.com/sketchsite/image.php?id=143222523296659",
            "url": "http://www.wookmark.com/image/512350",
            "width": "800",
            "height": "600",
            "image": "http://www.wookmark.com/images/original/512350_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512350_wookmark.jpg"
        },
        {
            "id": "512439",
            "title": "Hong Kong Memoirs by Fan Ho",
            "referer": "https://black-and-white.photogrist.com/fan-ho/",
            "url": "http://www.wookmark.com/image/512439/hong-kong-memoirs-by-fan-ho",
            "width": "714",
            "height": "997",
            "image": "http://www.wookmark.com/images/original/512439_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512439_wookmark.jpg"
        },
        {
            "id": "512639",
            "title": "Daily Inspiration #2083 | Abduzeedo Design Inspiration",
            "referer": "http://abduzeedo.com/daily-inspiration-2083",
            "url": "http://www.wookmark.com/image/512639/daily-inspiration-2083-abduzeedo-design-inspiration",
            "width": "770",
            "height": "1695",
            "image": "http://www.wookmark.com/images/original/512639_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512639_wookmark.jpg"
        },
        {
            "id": "512641",
            "title": "Apartment Building in Luxembourg / Metaform Architects on Inspirationde",
            "referer": "http://www.inspirationde.com/image/38084/",
            "url": "http://www.wookmark.com/image/512641/apartment-building-in-luxembourg-metaform-architects-on-inspirationde",
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            "height": "1000",
            "image": "http://www.wookmark.com/images/original/512641_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512641_wookmark.jpg"
        },
        {
            "id": "512645",
            "title": "",
            "referer": "https://www.tumblr.com/dashboard",
            "url": "http://www.wookmark.com/image/512645",
            "width": "540",
            "height": "308",
            "image": "http://www.wookmark.com/images/original/512645_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512645_wookmark.jpg"
        },
        {
            "id": "512695",
            "title": "Brand New: New Logo and Identity for University of Warwick",
            "referer": "http://www.underconsideration.com/brandnew/archives/new_logo_and_identity_for_university_of_warwick.php?

    utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+ucllc%2Fbrandnew+%28Brand+New%29#.VWJ4i2RViko",
            "url": "http://www.wookmark.com/image/512695/brand-new-new-logo-and-identity-for-university-of-warwick",
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            "height": "1190",
            "image": "http://www.wookmark.com/images/original/512695_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512695_wookmark.jpg"
        },
        {
            "id": "512754",
            "title": "troublemaker",
            "referer": "http://enfantdumiracle.tumblr.com/post/119753973458/misterk75-chloe-brase",
            "url": "http://www.wookmark.com/image/512754/troublemaker",
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            "height": "750",
            "image": "http://www.wookmark.com/images/original/512754_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512754_wookmark.jpg"
        },
        {
            "id": "512773",
            "title": "Sketch, Tape, Sleep. Automotive sketch blog by Jack Luttig",
            "referer": "http://jluttig.blogspot.de/",
            "url": "http://www.wookmark.com/image/512773/sketch-tape-sleep-automotive-sketch-blog-by-jack-luttig",
            "width": "1600",
            "height": "723",
            "image": "http://www.wookmark.com/images/original/512773_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512773_wookmark.jpg"
        },
        {
            "id": "512775",
            "title": "Snacks in Amsterdam - ADAC Reisemagazin on",
            "referer": "https://www.behance.net/gallery/26362107/Snacks-in-Amsterdam-ADAC-Reisemagazin",
            "url": "http://www.wookmark.com/image/512775/snacks-in-amsterdam-adac-reisemagazin-on",
            "width": "1200",
            "height": "1616",
            "image": "http://www.wookmark.com/images/original/512775_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512775_wookmark.jpg"
        },
        {
            "id": "512856",
            "title": "",
            "referer": "https://www.tumblr.com/dashboard",
            "url": "http://www.wookmark.com/image/512856/99-tumblr",
            "width": "353",
            "height": "530",
            "image": "http://www.wookmark.com/images/original/512856_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512856_wookmark.jpg"
        },
        {
            "id": "512949",
            "title": "Inspirationde - Source of design & inspiration",
            "referer": "http://www.inspirationde.com/image/38184/",
            "url": "http://www.wookmark.com/image/512949/inspirationde-source-of-design-inspiration",
            "width": "500",
            "height": "599",
            "image": "http://www.wookmark.com/images/original/512949_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512949_wookmark.jpg"
        },
        {
            "id": "513135",
            "title": "Soul/part 2 by Marc Laroche on Inspirationde",
            "referer": "http://www.inspirationde.com/image/38199/",
            "url": "http://www.wookmark.com/image/513135/soul-part-2-by-marc-laroche-on-inspirationde",
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            "image": "http://www.wookmark.com/images/original/513135_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/513135_wookmark.jpg"
        },
        {
            "id": "511822",
            "title": "The J20 Project (Concept) on Inspirationde",
            "referer": "http://www.inspirationde.com/image/37951/",
            "url": "http://www.wookmark.com/image/511822/the-j20-project-concept-on-inspirationde",
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            "height": "457",
            "image": "http://www.wookmark.com/images/original/511822_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511822_wookmark.jpg"
        },
        {
            "id": "511845",
            "title": "Pinterest: descubra e guarde ideias criativas",
            "referer": "https://www.pinterest.com/pin/386113368030131521/",
            "url": "http://www.wookmark.com/image/511845/pinterest-descubra-e-guarde-ideias-criativas",
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            "image": "http://www.wookmark.com/images/original/511845_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511845_wookmark.jpg"
        },
        {
            "id": "511873",
            "title": "Pinterest: descubra e guarde ideias criativas",
            "referer": "https://www.pinterest.com/pin/362047257520970869/",
            "url": "http://www.wookmark.com/image/511873/pinterest-descubra-e-guarde-ideias-criativas",
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            "image": "http://www.wookmark.com/images/original/511873_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511873_wookmark.jpg"
        },
        {
            "id": "511899",
            "title": "Handlettering Artwork For Walk Ministries on Inspirationde",
            "referer": "http://www.inspirationde.com/image/37959/",
            "url": "http://www.wookmark.com/image/511899/handlettering-artwork-for-walk-ministries-on-inspirationde",
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            "image": "http://www.wookmark.com/images/original/511899_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511899_wookmark.jpg"
        },
        {
            "id": "511906",
            "title": "Friend.Ship by NaBHaN on DeviantArt",
            "referer": "http://nabhan.deviantart.com/art/Friend-Ship-487783671",
            "url": "http://www.wookmark.com/image/511906/friend-ship-by-nabhan-on-deviantart",
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            "height": "650",
            "image": "http://www.wookmark.com/images/original/511906_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/511906_wookmark.png"
        },
        {
            "id": "511907",
            "title": "Cool by NaBHaN on DeviantArt",
            "referer": "http://nabhan.deviantart.com/art/Cool-502329624",
            "url": "http://www.wookmark.com/image/511907/cool-by-nabhan-on-deviantart",
            "width": "650",
            "height": "650",
            "image": "http://www.wookmark.com/images/original/511907_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/511907_wookmark.png"
        },
        {
            "id": "511920",
            "title": "Mellow Electric Drive Skateboards | HiConsumption",
            "referer": "http://hiconsumption.com/2015/05/mellow-electric-drive-skateboards/",
            "url": "http://www.wookmark.com/image/511920/mellow-electric-drive-skateboards-hiconsumption",
            "width": "960",
            "height": "640",
            "image": "http://www.wookmark.com/images/original/511920_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511920_wookmark.jpg"
        },
        {
            "id": "511921",
            "title": "Mellow Electric Drive Skateboards | HiConsumption",
            "referer": "http://hiconsumption.com/2015/05/mellow-electric-drive-skateboards/",
            "url": "http://www.wookmark.com/image/511921/mellow-electric-drive-skateboards-hiconsumption",
            "width": "630",
            "height": "420",
            "image": "http://www.wookmark.com/images/original/511921_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511921_wookmark.jpg"
        },
        {
            "id": "511923",
            "title": "Mellow Electric Drive Skateboards | HiConsumption",
            "referer": "http://hiconsumption.com/2015/05/mellow-electric-drive-skateboards/",
            "url": "http://www.wookmark.com/image/511923/mellow-electric-drive-skateboards-hiconsumption",
            "width": "630",
            "height": "420",
            "image": "http://www.wookmark.com/images/original/511923_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/511923_wookmark.jpg"
        },
        {
            "id": "512001",
            "title": "screen-shot-2014-09-22-at-2.12.12-pm.png (1506×1518)",
            "referer": "https://www.google.com/",
            "url": "http://www.wookmark.com/image/512001/screen-shot-2014-09-22-at-2-12-12-pm-png-1506-1518",
            "width": "1506",
            "height": "1518",
            "image": "http://www.wookmark.com/images/original/512001_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/512001_wookmark.png"
        },
        {
            "id": "512039",
            "title": "mercedes-benz and lufthansa collaborate on refining the VIP aircraft cabin",
            "referer": "http://www.designboom.com/design/mercedes-benz-lufthansa-cabin-concept-05-19-2015/",
            "url": "http://www.wookmark.com/image/512039/mercedes-benz-and-lufthansa-collaborate-on-refining-the-vip-aircraft-cabin",
            "width": "818",
            "height": "362",
            "image": "http://www.wookmark.com/images/original/512039_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512039_wookmark.jpg"
        },
        {
            "id": "512040",
            "title": "mercedes-benz and lufthansa collaborate on refining the VIP aircraft cabin",
            "referer": "http://www.designboom.com/design/mercedes-benz-lufthansa-cabin-concept-05-19-2015/",
            "url": "http://www.wookmark.com/image/512040/mercedes-benz-and-lufthansa-collaborate-on-refining-the-vip-aircraft-cabin",
            "width": "818",
            "height": "479",
            "image": "http://www.wookmark.com/images/original/512040_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512040_wookmark.jpg"
        },
        {
            "id": "512043",
            "title": "mercedes-benz and lufthansa collaborate on refining the VIP aircraft cabin",
            "referer": "http://www.designboom.com/design/mercedes-benz-lufthansa-cabin-concept-05-19-2015/",
            "url": "http://www.wookmark.com/image/512043/mercedes-benz-and-lufthansa-collaborate-on-refining-the-vip-aircraft-cabin",
            "width": "818",
            "height": "460",
            "image": "http://www.wookmark.com/images/original/512043_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512043_wookmark.jpg"
        },
        {
            "id": "512047",
            "title": "spalvierdelciotto designs a LED desk lamp for lexon",
            "referer": "http://www.designboom.com/design/spalvierdelciotto-led-desk-lamp-05-18-2015/",
            "url": "http://www.wookmark.com/image/512047/spalvierdelciotto-designs-a-led-desk-lamp-for-lexon",
            "width": "818",
            "height": "472",
            "image": "http://www.wookmark.com/images/original/512047_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512047_wookmark.jpg"
        },
        {
            "id": "512103",
            "title": "Changes",
            "referer": "http://overcalm.co.vu/post/119516785288",
            "url": "http://www.wookmark.com/image/512103/changes",
            "width": "548",
            "height": "629",
            "image": "http://www.wookmark.com/images/original/512103_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/512103_wookmark.png"
        },
        {
            "id": "512182",
            "title": "Unseen Cuba by Marius Jovaiša",
            "referer": "https://aerial.photogrist.com/marius-jovaisa/",
            "url": "http://www.wookmark.com/image/512182/unseen-cuba-by-marius-jovai-a",
            "width": "1180",
            "height": "785",
            "image": "http://www.wookmark.com/images/original/512182_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512182_wookmark.jpg"
        },
        {
            "id": "512193",
            "title": "It looks better in black",
            "referer": "https://www.facebook.com/itlooksbetterinblack/photos/pb.616706738402860.-2207520000.1432248795./874942449245953/?type=1&theater",
            "url": "http://www.wookmark.com/image/512193/it-looks-better-in-black",
            "width": "500",
            "height": "750",
            "image": "http://www.wookmark.com/images/original/512193_wookmark.png",
            "preview": "http://www.wookmark.com/images/thumbs/512193_wookmark.png"
        },
        {
            "id": "512225",
            "title": "Matt's Mini-ITX - Album on Imgur",
            "referer": "http://imgur.com/a/e8lFa",
            "url": "http://www.wookmark.com/image/512225/matt-s-mini-itx-album-on-imgur",
            "width": "3264",
            "height": "2448",
            "image": "http://www.wookmark.com/images/original/512225_wookmark.jpg",
            "preview": "http://www.wookmark.com/images/thumbs/512225_wookmark.jpg"
        }
    ]


    html文件【这里使用jquery】:

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
        <title>jquery随机图片瀑布流无限载入</title>
        <style type="text/css">
            *{margin:0;padding:0;list-style-type:none;}
            a,img{border:0;}
            body{font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}
            .clearFixed:after{content:"";display: block;clear:both;}
            /* container */
            #container{940px;margin:50px auto;}
            #container ul{300px;list-style:none;float:left;margin-right:20px;}
            #container ul li{margin-bottom:20px;}
            #container ul li img{300px;}
            li p{color:#ccc;font-size: 16px;}
            li a{color:#ccc;line-height:32px;text-decoration: none;}
            li a:hover{text-decoration: underline;}
            #load{100%;height:50px;display:none;position:fixed;left:0;bottom:0;background: rgba(0,0,0,.6);}
            #load img{height:30px;padding-top:10px;display: block;margin:0 auto;}


        </style>
    </head>
    <body>
    <div id="container" class="clearFixed">
        <ul class="col"></ul>
        <ul class="col"></ul>
        <ul class="col" style="margin-right:0"></ul>
    </div>
    <div  id="load"><img src="images/load.gif"/></div>
    </body>
    </html>
    <script type="text/javascript" src="jquery1.42.min.js"></script>
    <script type="text/javascript">
        $(function(){
            var iNow=1;
            var imgs=[];
            function loadMeinv(){
                $.ajax({
                    url:"pbl.json",
                    type:"post",
                    success:function(data)
                    {
                        //   alert(iNow);
                        imgs=[];//清空数组
                        for(var v=iNow-1;v<iNow*9;v++)//新建暂时数组
                        {
                            if(data[v]==undefined)
                            {
                                $("#load").fadeOut();//假设没有数据了 就隐藏load。而且不再载入
                                return false;
                            }
                            else
                            {
                                imgs.push([data[v]["image"],data[v]["title"],data[v]["url"]]);
                            }


                        }
                        //console.table(imgs);
                        var prepress=0;//用来推断是否载入完数组里面的数据
                        if(iNow<data.length/9)//推断是否载入完了json里面的数据
                        {
                            iNow++;
                            for(var i=0;i<imgs.length;i++)
                            {
                                (function(n){  //运行载入图片
                                    var yImg=new Image();
                                    yImg.src=imgs[n][0];
                                    yImg.onload=function()
                                    {
                                       // var dd=document.createElement("li");
                                      //  dd.innerHTML="<img src='"+yImg.src+"'/>";
                                        var dd='<li><a href="'+imgs[n][2]+'" target="_blank"><img src="'+yImg.src+'"/></a><p><a href="'+imgs[n][2]+'" target="_blank">'+imgs[n][1]+'</a></p></li>';
                                        $minUl = getMinUl();
                                        $minUl.append(dd);
                                        prepress++;
                                        if(prepress>=imgs.length) //控制是否已经运行完数组里面的内容了
                                        {
                                            $("#load").fadeOut();
                                        }
                                    };
                                })(i);


                            }
                        }
                        else
                        {
                            $("#load").fadeOut();
                            return false;
                        }
                       // console.log(iNow);
                    }
                })
            }
            loadMeinv();
            $(window).bind("scroll",function(){
                var $minUl = getMinUl();
                if($minUl.height() <= $(window).scrollTop()+$(window).height()){
                    //当最短的ul的高度比窗体滚出去的高度+浏览器高度大时载入新图片
                    $("#load").fadeIn();
                    //  setTimeout(function(){
                    loadMeinv();
                    //  $("#load").fadeOut();
                    //  },2000);
                }
            });
            function getMinUl(){//每次获取最短的ul,将图片放到其后
                var $arrUl = $("#container .col");
                var $minUl =$arrUl.eq(0);
                $arrUl.each(function(index,elem){
                    if($(elem).height()<$minUl.height()){
                        $minUl = $(elem);
                    }
                });
                return $minUl;
            }
        })
    </script>

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  • 原文地址:https://www.cnblogs.com/yfceshi/p/6910306.html
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