例如  string s =“1，2，3”


转换成 int arr[] = {1,2,3}

        String s ="1,2,3";
        String strArr[] = s.split(",");
        int arr[] = new int[strArr.length];
        for(int i = 0; i < arr.length; i++) {
            arr[i] = Integer.parseInt(strArr[i]);
        }
        for(int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }
  

谢谢  搞定了