k=(k>0)?(p++, k=0):k+1;

以上代码是什么意思？  
  摘自《Java与面向对象程序设计教程》印旻  
  p55,p56,p58,p61 问题点数：20、回复次数：4Top

1 楼onestab（）回复于 2003-02-03 03:18:44 得分 0

excerpt   from   Thinking   in   java   2e:  
  The   comma   operator  
  Earlier   in   this   chapter   I   stated   that   the   comma   operator   (not   the   comma   separator,   which   is   used   to   separate   definitions   and   function   arguments)   has   only   one   use   in   Java:   in   the   control   expression   of   a   for   loop.   In   both   the   initialization   and   step   portions   of   the   control   expression   you   can   have   a   number   of   statements   separated   by   commas,   and   those   statements   will   be   evaluated   sequentially.    
  //:   c03:CommaOperator.java  
  public   class   CommaOperator   {  
      public   static   void   main(String[]   args)   {  
          for(int   i   =   1,   j   =   i   +   10;   i   <   5;  
                  i++,   j   =   i   *   2)   {  
              System.out.println("i=   "   +   i   +   "   j=   "   +   j);  
          }  
      }  
  }   ///:~  
  >>>   在   ?   :   中也可以用   ","   吗？   k=(k>0)?(p++,   k=0):k+1;Top

2 楼danceflash（Wine）回复于 2003-02-03 03:22:59 得分 10

好像是错的吧  
  记得Java中的逗号运算符只能用于"for"循环Top

3 楼danceflash（Wine）回复于 2003-02-03 03:23:47 得分 5

呵呵~~~  
  楼上好快的说^_^Top

4 楼marf_cn（吗啡）回复于 2003-02-03 15:02:48 得分 5

是啊Top

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