转载
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="http://www.jq22.com/jquery/vue.min.js"></script>
<style>
.upload_warp_img_div_del {
position: absolute;
top: 6px;
16px;
right: 4px;
}
.upload_warp_img_div_top {
position: absolute;
top: 0;
100%;
height: 30px;
background-color: rgba(0, 0, 0, 0.4);
line-height: 30px;
text-align: left;
color: #fff;
font-size: 12px;
text-indent: 4px;
}
.upload_warp_img_div_text {
white-space: nowrap;
80%;
overflow: hidden;
text-overflow: ellipsis;
}
.upload_warp_img_div img {
max- 100%;
max-height: 100%;
vertical-align: middle;
}
.upload_warp_img_div {
position: relative;
height: 100px;
120px;
border: 1px solid #ccc;
margin: 0px 30px 10px 0px;
float: left;
line-height: 100px;
display: table-cell;
text-align: center;
background-color: #eee;
cursor: pointer;
}
.upload_warp_img {
border-top: 1px solid #D2D2D2;
padding: 14px 0 0 14px;
overflow: hidden
}
.upload_warp_text {
text-align: left;
margin-bottom: 10px;
padding-top: 10px;
text-indent: 14px;
border-top: 1px solid #ccc;
font-size: 14px;
}
.upload_warp_right {
float: left;
57%;
margin-left: 2%;
height: 100%;
border: 1px dashed #999;
border-radius: 4px;
line-height: 130px;
color: #999;
}
.upload_warp_left img {
margin-top: 32px;
}
.upload_warp_left {
float: left;
40%;
height: 100%;
border: 1px dashed #999;
border-radius: 4px;
cursor: pointer;
}
.upload_warp {
margin: 14px;
height: 130px;
}
.upload {
border: 1px solid #ccc;
background-color: #fff;
650px;
box-shadow: 0px 1px 0px #ccc;
border-radius: 4px;
}
.hello {
650px;
margin-left: 34%;
text-align: center;
}
</style>
</head>
<body>
<div id="app">
<div class="hello">
<div class="upload">
<div class="upload_warp">
<div class="upload_warp_left" @click="fileClick">
<img src="./upload.png">
</div>
<div class="upload_warp_right" @drop="drop($event)" @dragenter="dragenter($event)" @dragover="dragover($event)">
或者将文件拖到此处
</div>
</div>
<div class="upload_warp_text">
选中{{imgList.length}}张文件，共{{bytesToSize(this.size)}}
</div>
<input @change="fileChange($event)" type="file" id="upload_file" multiple style="display: none"/>
<div class="upload_warp_img" v-show="imgList.length!=0">
<div class="upload_warp_img_div" v-for="(item,index) of imgList">
<div class="upload_warp_img_div_top">
<div class="upload_warp_img_div_text">
{{item.file.name}}
</div>
<img src="./del.png" class="upload_warp_img_div_del" @click="fileDel(index)">
</div>
<img :src="item.file.src">
</div>
</div>
</div>
</div>
</div>
<script>
// import up from './src/components/Hello'
var app = new Vue({
el: '#app',
data () {
return {
imgList: [],
size: 0
}
},
methods: {
fileClick() {
document.getElementById('upload_file').click()
},
fileChange(el) {
if (!el.target.files[0].size) return;
this.fileList(el.target);
el.target.value = ''
},
fileList(fileList) {
let files = fileList.files;
for (let i = 0; i < files.length; i++) {
//判断是否为文件夹
if (files[i].type != '') {
this.fileAdd(files[i]);
} else {
//文件夹处理
this.folders(fileList.items[i]);
}
}
},
//文件夹处理
folders(files) {
let _this = this;
//判断是否为原生file
if (files.kind) {
files = files.webkitGetAsEntry();
}
files.createReader().readEntries(function (file) {
for (let i = 0; i < file.length; i++) {
if (file[i].isFile) {
_this.foldersAdd(file[i]);
} else {
_this.folders(file[i]);
}
}
})
},
foldersAdd(entry) {
let _this = this;
entry.file(function (file) {
_this.fileAdd(file)
})
},
fileAdd(file) {
//总大小
this.size = this.size + file.size;
//判断是否为图片文件
if (file.type.indexOf('image') == -1) {
file.src = 'wenjian.png';
this.imgList.push({
file
});
} else {
let reader = new FileReader();
reader.vue = this;
reader.readAsDataURL(file);
reader.onload = function () {
file.src = this.result;
this.vue.imgList.push({
file
});
}
}
},
fileDel(index) {
this.size = this.size - this.imgList[index].file.size;//总大小
this.imgList.splice(index, 1);
},
bytesToSize(bytes) {
if (bytes === 0) return '0 B';
let k = 1000, // or 1024
sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'],
i = Math.floor(Math.log(bytes) / Math.log(k));
return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
}/* ,
dragenter(el) {
el.stopPropagation();
el.preventDefault();
},
dragover(el) {
el.stopPropagation();
el.preventDefault();
},
drop(el) {
el.stopPropagation();
el.preventDefault();
this.fileList(el.dataTransfer);
} */
}
})
</script>
</body>
</html>