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一、字符串转数组
(用split方法将字符串按某个字符切割成若干个字符串,并以数组形式返回)
var str = "1,2,3";
strArr = s.split(",");// 在每个逗号(,)处进行分解。
二、数组转字符串
(用join方法将数组元素用某个字符连接成字符串)
var a = new Array(1,2,3);
var b = a.join("-");