<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script> <style> #draw { 450px; height: 450px; border: 2px solid #ccc; position: relative; top: 10px; left: 10px; cursor: pointer; } .content { background-color: chartreuse; 400px; height: 400px; overflow: scroll; } </style> </head> <body> <div style=" 200px;height: 200px;overflow: scroll;"> <div class="content" id="draw"> <!-- <div id="draw"></div> --> <table> <thead> <tr> <td>第1列</td> <td>第2列</td> <td>第3列</td> <td>第4列</td> <td>第5列</td> <td>第6列</td> <td>第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>第10列</td> </tr> </thead> <tbody> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> <tr> <td>rows第1列</td> <td>rows第2列</td> <td>rows第3列</td> <td>rows第4列</td> <td>rows第5列</td> <td>rows第6列</td> <td>rows第7列</td> <td> <input type="text"> </td> <td><select name="" id=""> <option value="1">测试1</option> <option value="1">测试2</option> </select></td> <td>rows第10列</td> </tr> </tbody> </table> </div> </div> <script> var oDiv = document.getElementById("draw"); var x, y, xw, yw; oDiv.onmousedown = function (ev) { e = event || ev; x = e.clientX; y = e.clientY; xw = y - oDiv.offsetTop; // 初始y点距上边框的距离 yw = x - oDiv.offsetLeft; //初始x点距左边框的距离 console.log("onmousedown:" + "x:" + x + ",y:" + y + ",xw:" + xw + ",xy") document.onmousemove = function (ev) { e = event || ev; // console.dir(oDiv.offsetLeft + "," + oDiv.offsetTop) if (e.clientY <= 0 && e.clientX > 0) { oDiv.style.left = e.clientX - yw + "px"; oDiv.style.top = "0px"; } else if (e.clientY > 0 && e.clientX <= 0) { oDiv.style.left = "0px"; oDiv.style.top = e.clientY - xw + "px"; } else { oDiv.style.left = e.clientX - yw + "px"; oDiv.style.top = e.clientY - xw + "px"; } }; } document.onmouseup = function (event) { e = event || ev; // console.dir("up:" + oDiv.offsetLeft + "," + oDiv.offsetTop + "---xw:" + xw + ",xy:" + yw) // console.log("s_left:" + oDiv.style.left + ",s_top:" + oDiv.style.top); // oDiv.style.left = oDiv.style.left > 0 ? oDiv.style.left : 0; // oDiv.style.top = oDiv.style.top > 0 ? oDiv.style.top : 0; document.onmousemove = null; }; </script> </body> </html>