two = one.split(",")

import java.util.*;
public class Test {
public static void main(String[] args) {
String s = "1,2,3,4,5,6,7,8,9";
System.out.println(Arrays.toString(s.split(",")));
}
}

public class Split {
public static void main(String args[]){
String s = "1,2,3,4,5,6,7,8,9";
String s1[]=s.split(",");
System.out.println(s1);
}
}
为什么不行呢

不能直接打印数组- -不然是打印数组地址的（貌似）

for(String num : s1) {
System.out.println(num);
}
这个可以哦

System.out.println(Arrays.toString(一维数组));
System.out.println(Arrays.deepTooString(多维数组));