什么是＆＃39; = |＆＃39;操作员呢？

Question

我用Google搜索，但它不会返回与表达式相关的结果。我猜这与位有关。 =|究竟做了什么？

Answer 1

看看这个

http://www.tutorialspoint.com/cprogramming/c_operators.htm

所以

  |   inclusive bitwise OR
  =   assignment
  |=  bitwise inclusive OR and assignment 
  =|  syntax error

至于| =

  a |= b;

等于

  a = a | b;