java sping 接口作用 javaspting

分隔字符串.返回分隔后的字符串数组

stringObj.split([separator，[limit]])   第一个参数是个正则表达式, 第二个参数可选
  public static void split拆分字符串(){
   //split  vt. 分裂;分开;
   
      String s1 = "hello there";
      String s3 = "this is a test";
    
   String[] s2 = s1.split("e");//返回"h","llo th","r"
   
   //按s分隔成两个 就是按第一个s来分
   //split("s",3);  按s分隔成三个  就是按第一个第二个s来分  返回"thi"," i"," a test"
   
   String[] s4 = s3.split("s",2); //返回"thi"和" is a test"
   
   System.out.println("length:"+s2.length);
   for(String s:s2){
    System.out.println(s);
   }
   System.out.println("length:"+s4.length);
   for(String s:s4){
    System.out.println(s);
   }
   System.out.println("--------------------------------------------------------");

  //上面的都简单.