urate. function Validate(obj) { password = obj.password.value.replace(/(^ +)|( +$)/g,'') if(obj.username.value.length < 2 || obj.username.value.length > 20) { alert("用户名大于2个字符小于20个字符"); obj.username.focus(); return false; } if(!new RegExp(/^[\u4e00-\u9fa5a-zA-Z0-9_]+$/).test(obj.username.value)) { alert("用户名只能由中文、数字、字母,下划线组成"); obj.username.focus(); return false; } if(password.length < 6 || password.length > 50) { alert("密码需要6位以上50位以下的"); obj.password.focus(); return false; } } The member registers

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