JS正则表达式验证密码格式的集中情况总结

var reg =/^(?=.[a-zA-Z])(?=.\d)(?=.[~!@#$%^&()_+`\-={}:";'<>?,.\/]).{6,18}$/;

var reg=/^(?![^a-zA-Z]+$)(?!\D+$)/

var reg=/^(?:(?=.[A-Z])(?=.[a-z])(?=.[0-9])|(?=.[A-Z])(?=.[a-z])(?=.[^A-Za-z0-9])|(?=.[A-Z])(?=.[0-9])(?=.[^A-Za-z0-9])|(?=.[a-z])(?=.[0-9])(?=.[^A-Za-z0-9])).{6,}|(?:(?=.[A-Z])(?=.[a-z])|(?=.[A-Z])(?=.[0-9])|(?=.[A-Z])(?=.[^A-Za-z0-9])|(?=.[a-z])(?=.[0-9])|(?=.[a-z])(?=.[^A-Za-z0-9])|(?=.[0-9])(?=.[^A-Za-z0-9])|).{6,}$/