摘要：
function check(){ //var pattern1=/^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$/;//15位的身份证 //var pattern2=/^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{4}$/;//18位的身份证 //var pattern = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/;//匹配15位或者18位身份证 //var pattern = /^(\d{1,2}|1\d\d|2[ 阅读全文