Tip: you can modify some code before running
<!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><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Enter two numbers to compare the size</title><style>body{font:12px/1.5 arial;text-align:center;}.f-text{width:50px;border:1px solid #ccc;background:#f0f0f0;font-family:inherit;padding:3px;}.f-btn{margin:0 10px;}strong{padding:0 10px;}span{font-weight:700;color:red;}</style><script type="text/javascript">Window. onload = function () {var aInput = document. getElementsByTagName ("input"); var aSpan = document. getElementsByTagName ("span") [0]; var I = 0; for (I = 0; I <aInput. length-1; I ++) {aInput [I]. onkeyup = function () {this. value = this. value. replace (/[^ d]/, "")} aInput [2]. onclick = function () {(aInput [0]. value = "" | aInput [1]. value = "")? Alert ("enter a number! ") :( ASpan. innerHTML = Math. max (aInput [0]. value, aInput [1]. value ));}};</script></head><body><input type="text" class="f-text" /><strong>Vs</strong><input type="text" class="f-text" /><input type="button" value="最大的数是 »" class="f-btn" />?</body></html></td> </tr></table>
Tip: you can modify some code before running