a***e
发帖数: 1140 | 1 Three files: head.h, f1.cc, f2.cc
in head.h
#ifndef head_h_
#define head_h_
static int value;
void my_function();
#endif
in f1.cc
#include "head.h"
int main(){
value=3;
my_function();
cout<
}
in f2.cc
#include "head.h"
void my_function(){
value=5;
}
For succinct, I define the global variable in head file.
If I omit | y****i
发帖数: 156 | 2 static usually should be used in .c/cpp file. Its visibility is within the
file. You should not use in .h file. Otherwise you define the variable when
you include the .h file.
【在 a***e 的大作中提到】
: Three files: head.h, f1.cc, f2.cc
: in head.h
: #ifndef head_h_
: #define head_h_
: static int value;
: void my_function();
: #endif
: in f1.cc
: #include "head.h"
: int main(){
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