Full code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>jquery动态改变div宽度和高度</title> <script type="text/javascript" src="jquery/jquery-1.11.2.min.js"></script> </head> <body> <div> <input id="addwidthkeleyi" value="增加宽度" type="button" /> <input id="reducewidthkeleyi" value="减少宽度" type="button" /> <input id="addheightkeleyi" value="增加高度" type="button" /> <input id="reduceheightkeleyi" value="减少高度" type="button" /> 点击按钮,注意下方div宽高的变化</div> <div style="border:1px solid #999;width:200px;height:200px" id="keleyidiv"></div> <script type="text/javascript"> $("#addwidthke"+"leyi").on("click", function () { $("#keleyidiv").width($("#keley" + "idiv").width() + 50); }); $("#reducewidthk" + "eleyi").on("click", function () { $("#keleyidiv").width($("#kel"+"eyidiv").width() - 50); }); $("#addheightkele" + "yi").on("click", function () { $("#kel" + "eyidiv").height($("#keleyidiv").height() + 50); }); $("#reduceheightkeley" + "i").on("click", function () { $("#keleyidiv").height($("#keleyidiv").height() - 50); }); </script> </body> </html>
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