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鸽子
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845天前<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
<html> |
<head> |
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
<title>Random Chars</title> |
<style type="text/css"> |
body { |
font-size: 10px; |
text-align: center; |
} |
td { |
border: 1px solid #137d5c; |
text-align: center; |
} |
input { |
border: 1px solid #137d5c; |
font-size: 12px; |
text-align: center; |
} |
</style> |
<script language="JavaScript"> |
function getRandomChars(length) { |
if (isNaN(length)) { |
document.getElementById("error").innerText = "闹呢!输入数字!"; |
return; |
} else if (parseInt(length) <= 0) { |
document.getElementById("error").innerText = "你会好好的不!!!"; |
return; |
} else if (parseInt(length) > 16) { |
document.getElementById("error").innerText = "太长了!最大16!瞎试什么!老实儿的!"; |
return; |
} else |
document.getElementById("error").innerText = ""; |
var ranChars = ""; |
var chars = ""; |
var numChars = "0123456789"; |
var lowChars = "abcdefghijklmnopqrstuvwxyz"; |
var upChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; |
var symChars = "`~!@#$%^&*()-_=+[{]}\\|;:'\",<.>/?" |
if (document.ranForm.numChars.checked) |
chars += numChars; |
if (document.ranForm.lowChars.checked) |
chars += lowChars; |
if (document.ranForm.upChars.checked) |
chars += upChars; |
if (document.ranForm.symChars.checked) |
chars += symChars; |
if (chars.length < 1) { |
document.getElementById("error").innerText = "闹呢!P都不选生成个P啊!"; |
return; |
} else |
document.getElementById("error").innerText = ""; |
for ( var i = 0; i < length; i++) { |
ranChars = ranChars + chars.charAt(Math.random() * chars.length); |
} |
document.getElementById('ranChars').value = ranChars; |
} |
</script> |
</head> |
<body> |
<center> |
<form name="ranForm"> |
<table width="310"> |
<tr> |
<td>数字<input name="numChars" type="checkbox" />小写字母<input |
name="lowChars" type="checkbox" />大写字母<input name="upChars" |
type="checkbox" />符号<input name="symChars" type="checkbox" /> |
</td> |
</tr> |
<tr> |
<td>长度<input id="len" type="text" size="1" maxlength="2" |
value="数字" /><input id="getRan" type="button" value="生成随机字符" |
onClick="getRandomChars(document.getElementById('len').value)" /> |
<input id="ranChars" type="text" readonly="readonly" size="22" /><br /> |
<div id="error" style="color: red;"></div> |
</td> |
</tr> |
</table> |
</form> |
</center> |
</body> |
</html> |
