errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
最编程
2024-08-13 10:06:51
...
函数原型:FILE *fopen( const char *filename, const char *mode );
返回值:返回值类型为FILE *,打开文件成功返回指向打开文件的指针,打开文件失败返回空指针(NULL)
代码示例:
1 #include <stdio.h>
2
3 void OpenFile(FILE **map); //打开文件
4 void JudgeOpenSuc(FILE *judge); //判断文件打开是否成功
5
6 int main()
7 {
8 FILE *fp;
9
10 OpenFile(&fp);
11 JudgeOpenSuc(fp);
12
13 return 0;
14 }
15
16 void OpenFile(FILE **map)
17 {
18 (*map) = fopen("E:my.txt", "a+");
19 }
20
21 void JudgeOpenSuc(FILE *judge)
22 {
23 if (judge != NULL)
24 {
25 printf("Open successfully\n");
26 }
27 else
28 {
29 printf("Open failure\n");
30 }
31 }
推荐阅读
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8
-
errorsk-4nQwBFp0LP8NpyK9WwwoT3BlbkFJyH23SKdFWR1P9Sr63sF8