public static String[] split(String line) { 
     
    List<String> list = new ArrayList<>(); 
     
    int start = 0; 
    int end = -1; 
      
     
    while(true) { 
        
      start = end + 1; 
        
      if(line.charAt(start) == '\"') { 
        end = line.indexOf("\"", start ) + 1; 
      } else { 
        end = line.indexOf("," , start ); 
      } 
       
      if(end < 0) { 
        //最后了 
        end = line.length() ; 
      } 
       
      String p1 = line.substring(start, end); 
       
      list.add(p1); 
       
      if(end >= line.length() - 1) { 
        break; 
      } 
       
    } 
     
      
    return list.toArray(new String[0]) ; 
  }