预编译_跨平台编译 By takethat 总阅读次 发表于 2017-06-29 文章目录 #ifdef 编译时候带参数编译 123456789101112131415161718192021222324#ifdef TAKE#define THAT 0#endif#ifdef TAKE2#define THAT 2 #endif#include<iostream>using std::cout;using std::endl;int main(){ cout<<THAT<<endl; } 1g++ -DTAKE2 ndef.cpp 选择编译TAKE2的宏定义 ------------------------------------------------------------------------------------------------------------------------------ 打赏我的人,运气都不会太差~ ------------------------------------------------------------------------------------------------------------------------------ 打赏我的人,运气都不会太差~