https://blog.overfit.org/tags/%E7%B3%BB%E7%BB%9F%E7%BC%96%E7%A8%8B/Recent content in 系统编程 on 里列昂遗失的记事本Hugozh-cnTue, 07 Dec 2021 15:15:00 +0800https://blog.overfit.org/posts/2021-12-07-15656318-%E4%BD%BF%E7%94%A8%E4%BD%8D%E7%BA%A7%E5%92%8C%E9%80%BB%E8%BE%91%E8%BF%90%E7%AE%97%E7%BC%96%E5%86%99c%E8%A1%A8%E8%BE%BE%E5%BC%8Fxy/Tue, 07 Dec 2021 15:15:00 +0800https://blog.overfit.org/posts/2021-12-07-15656318-%E4%BD%BF%E7%94%A8%E4%BD%8D%E7%BA%A7%E5%92%8C%E9%80%BB%E8%BE%91%E8%BF%90%E7%AE%97%E7%BC%96%E5%86%99c%E8%A1%A8%E8%BE%BE%E5%BC%8Fxy/只是用位级和逻辑运算，编写一个C表达式，它等价于x==y。当x和y相等时返回1，否则返回0 int main(void) { int x = 32, y = 32; printf("%dn", !((~x & y) | (~y & x)));