Topic: <<=是什么意思？

  Print this page
1.<<=是什么意思？ Copy to clipboard
Posted by: bullyyd
Posted on: 2003-04-08 10:24

i<<=j的值是多少？
i=4,j=2;
2.Re:<<=是什么意思？ [Re: bullyyd] Copy to clipboard
Posted by: kenwil
Posted on: 2003-04-08 11:30

<<= : assignment with bitwise left shift, filling with 0s
3.Re:<<=是什么意思？ [Re: bullyyd] Copy to clipboard
Posted by: bullyyd
Posted on: 2003-04-08 13:36

那么<<和<<=有什么不同呢？
4.Re:<<=是什么意思？ [Re: bullyyd] Copy to clipboard
Posted by: nettman
Posted on: 2003-04-08 17:38

class Test
{
  public static void main(String[] args)
  {
    int i = 4;
    int j = 2;
    i <<= j;
    System.out.println("i = " + i);
  }
}
结果：i = 16

"<<="为复合运算符，意思是：将“i“中的值左移”j“位后重新赋给”i“。

   Powered by Jute Powerful Forum® Version Jute 1.5.6 Ent
Copyright © 2002-2021 Cjsdn Team. All Righits Reserved. 闽ICP备05005120号-1
客服电话 18559299278    客服信箱 714923@qq.com    客服QQ 714923