<style> div#table9x9{ box-sizing: border-box; border: 1px solid #666; border-top: none; border-right: none; display: inline-block; font-size: 14px; } div#table9x9 span{ display: inline-block; 80px; border: 1px solid #666; border-bottom: none; border-left: none; padding: 4px 6px; } </style> <script> /* * javascript-js-9x9乘法口诀表 */ document.write(`<div id="table9x9">`) for(let i = 1 ; i <= 9 ; i++ ){ for(let j = 1 ; j <= i ; j++ ){ document.write(`<span>${j} x ${i} = ${i*j}</span>`) } document.write(`<br/>`) } document.write(`</div>`) </script>