如题, ,{a:1, b:key, c:3},{a:1, b:key1, c:3},{a:1, b:key2, c:3},{a:1, b:key3, c:3},{a:1, b:key4, c:3},
我有一组字符串, 由N个json格式的字符串组成,每一组json字符串其中有一个属性是唯一的,也就是上面的key.求一正则,能够根据key截取出key所在的json字符串.试试 希望对你有用
var string = "{a:1, b:key, c:3},{a:1, b:key1, c:3},{a:1, b:key2, c:3},{a:1, b:key3, c:3},{a:1, b:key4, c:3}";
var exp = /\{a\:\w+\,\s?b\:key\,\s?c\:\w+\}/;
var str;
var arr = new Array();
arr = string.match(exp);
str = arr!=null?arr[0]:"null str";
alert(str);