很欠扁的週記 絕對爆笑
c preprocessor - Why are #ifndef and #define used in c++ header files - Stack Overflow 很欠扁的週記(絕對爆笑) I have been seeing code like this usually in the start of header files #ifndef HEADERFILE_H #define HEADERFILE_H and at the end of the file is #endif I am confused about the ......
全文閱讀