数组与字符串的相互转换

1、数组转字符串

var a, b;
a = [0,1,2,3,4];
b = a.join("-");
// b = "0-1-2-3-4";

2、字符串转数组

var mm = "aa,bb,cc";
var nn = mm.split(",");// nn = ["aa", "bb", "cc"]

var a1 = "abc";
a2 = a1.split('');  // a2 = ["a", "b", "c"]