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fopen_s( FILE* pFile, const char *filename, const char *mode);
打开文件成功返回0,否则返回其他值。
用法例子:
#include<stdio.h>
#include<stdlib.h>
void main()
{
FILE *fp;
char ch;
if (fopen_s(&fp,"D:\\std.txt", "a+")!=NULL)
{
printf("打开文件失败!\n");
exit(0);
}
ch = getchar();
while (getchar()!='*')
{
fputc(ch, fp);
ch = getchar();
}
exit(0);
fclose(fp);
}
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