使用正则test( )第一次是 true,第二次是false
2020-03-14 本文已影响0人
cooqi
https://blog.csdn.net/qq_34849000/article/details/78591479
var s1 = "3206064928：MRLP：3206064928";
var s2 = "MRLP";
var reg = /mrlp/ig;
console.log(reg.test(s1)); //true
console.log(reg.lastIndex); //reg.lastIndex = 15
reg.lastIndex = 0; //这里我将 lastIndex 重置为 0
console.log(reg.test(s2)); //true
