JavaScript实现简单验证码
JavaScript实现简单验证码,供大家参考,具体内容如下
验证流程图
HTML部分
```javascriptDocument 543 看不清换一张 验证码:
JavaScript部分
window.onload=function(){
createCode(4);
}
//创建验证码
functioncreateCode(len){
//
varcode='';
varcodeLength=parseInt(len);//验证码的长度
varcheckCode=document.getElementById('checkCode');//获取画布
//设置验证码
varcodeArray=newArray(0,1,2,3,4,5,6,7,8,9,'z','x','c','v','b','n','m','l','k','j','h','g','f','d','s','a','p','o','i','u','y','t','r','r','e','w','q',"Z",'X','C',"V","B","N","M","A","S","D","F","G","H","J","L","K","P","O","I","U","Y","T","R","E","W","Q")
//设置验证码颜色
//varnum=Math.floor(Math.random()*8)
varcolor='#';
varbgcolor='#';
varfontcolor=newArray(1,2,3,4,5,6,7,8,9,'a','b','c','d','e','f');
//循环数组,随机获取
for(vari=0;i
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