js的正则表达式总结

var reg = /^[0-9a-zA-Z!@#$%^&*()_+-/.]{8,20}$/;

//正则
var reg = /^(?![a-zA-Z0-9]+$)(?![^a-zA-Z/D]+$)(?![^0-9/D]+$).{8,20}$/;

var reg = /^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{8,10}$/;

var reg = /^(?=.*[a-z])(?=.*\d)(?=.*[#@!$-_^*()])[a-z\d#@!$-_^*()]{8,16}$/;