//A-Z a-z 0-9 !#$%^&* $str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%^&*"; //生成随机字符 function createPwd($str,$len){ $pwd = ''; $strlen = strlen($str); for($i=0;$i<$len;$i++){ $pwd .= $str{mt_rand(0,$strlen-1)}; } return $pwd; } echo createPwd($str,16); |
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js写法
//A-Z a-z 0-9 !#$%^&* var str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%^&*"; //生成随机字符 function createPwd(str,len){ var pwd = ''; var maxPos = str.length; for(var i=0;i<len;i++){ pwd += str.charAt(Math.floor(Math.random()*maxPos)); } return pwd; } var passwd = createPwd(str,16); document.write(passwd); |
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