...12..变成'1','2','3','4',...'11','12'..这样一个字符串_百度...答:这个方法有很多,写两种你看看。方法一:public class Num { public static void main(String[] args){ String str1="1,2,3";String ret="'"+str1.replace(",", "','")+"'";System.out.println(ret);} } 方法二:public class Num { public static void main(String[] args){ Strin...