名字:
var nameReg = /^[u4E00-u9FA5]{2,4}$/;
var name="32131234214321"
nameReg.test(name)
身份证:
var reg = /(^d{15}$)|(^d{18}$)|(^d{17}(d|X|x)$)/;
var idNo="3213124241442344232"
reg.test(idNo)
字符串提取数字
var s ="价格4500元"; var num= s.replace(/[^0-9]/ig,"");