js隨機驗證碼

隨機驗證碼：

doctype html
>
<
html
>
<
head
>
<
meta 
charset
="utf-8"
>
<
title
>
title
>
<
style
>
*#auth_code
style
>
head
>
<
body
>
<
div 
id="auth_code"
onclick
="auth_code()"
>
div>
<
script
>
//驗證碼內需要字元個數
varnum=4
; 
//點選更換驗證碼
function
auth_code() 
}//獲取元素通過id-----------函式-----------
function
$(idname)
//字元隨機選取---------------函式------------
function
randstr()
return
words;
}//隨機顏色rgb------------函式----------------
function
randcolor()
//隨機顏色十六進製制-----------函式------------------
function
randcolor16()
return
color;
}window.onload 
=auth_code();
script
>
body
>
html
>

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