var reg = /\d+/; var str = 'woshi2016ni2017'; var res = reg.exec(str); console.log(res) // ['2016',index:5,input:'woshi2016ni2017'] //第二次通过exec捕获的内容还是第一个"2016" var res = reg.exec(str); console.log(res) // ['2016',index:5,input:'woshi2016ni2017']
var reg = /\d/g; var str = 'woshi2016ni2017'; console.log(reg.lastIndex) console.log(reg.exec(str))
var reg = /\d+/g;
var str = 'aswofde2015xsewde2016awdefer2017';
var ary = [];
var res = reg.exec(str);
while(res){
ary.push(res[0])
res = reg.exec(str);
}
console.log(ary)//[2015,2016,2017]
var reg = /\d+?/g;
var str = 'aswofde2015xsewde2016awdefer2017';
console.log(reg.exec(str));
var reg = /\d+?/g;
var str = 'aswofde2015xsewde2016awdefer2017';
var ary = str.match(reg);//[2,0,1,5,2,0,1,6,2,0,1,7]
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