JS 怎么制作数字、字母、汉字混合的验证码答: var code ; //在全局 定义验证码 function createCode(){ code = "";var codeLength = 100;//验证码的长度 var checkCode = document.getElementById("checkCode");checkCode.value = "";var selectChar = new Array(2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H...