var name= document.getElementById('username').value;
var psd= document.getElementById('password').value;
var psd2= document.getElementById('password-2').value;
var error = document.getElementById('test-error');
var Name=/[a-zA-Z0-9]{3,10}/
if (Name.test(name))
if(psd.length>=6&&psd.length<=20)
if(psd===psd2)
return true
else
error.innerText='两次输入口令必须一致'
else
error.innerText='口令必须是6-20位'
else
error.innerText='用户名必须是3-10位英文字母或数字'
return false
}
醉后诀
var name= document.getElementById('username').value; var psd= document.getElementById('password').value; var psd2= document.getElementById('password-2').value; var error = document.getElementById('test-error'); var Name=/[a-zA-Z0-9]{3,10}/ if (Name.test(name)) if(psd.length>=6&&psd.length<=20) if(psd===psd2) return true else error.innerText='两次输入口令必须一致' else error.innerText='口令必须是6-20位' else error.innerText='用户名必须是3-10位英文字母或数字' return false }