一些正则

//1. 使用正则表达式判断是否已 ^^ 开始
//2. 调用字符串的 replace(reg, str) 方法除去指定的字符串. 

var str = "^^abc";
var reg = /^\^{2}/g;
alert(reg.test(str)); //true
str = str.replace(reg, "");
alert(str);

var str2 = "abc";
alert(reg.test(str2)); //false

String reward = "1:[1=3|2=1]:2:[44=3|54=3]:2";
String[] ss = reward.split(":\\[|\\]:|:");
ss = [1, 1=3|2=1, 2, 44=3|54=3, 2]

reward = "1=1|2=1|3=1|4=1|5=1000";
String[] ss = reward.split("\\|");
ss = [1=1, 2=1, 3=1, 4=1, 5=1000]