用fopen()打开文件 [英] Open File with fopen()
本文介绍了用fopen()打开文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何使用 fopen ()打开文件并在我的文件中添加内容并查看????????
解决方案
fopen(< FileName>," a");
或
fopen( < FileName>," a +");
如果您希望能够读取和写入文件。
< blockquote>当我写作
int main(void){
char buffer [100];
FILE * fp;
fopen(" functions.txt"," a +");
cout<< fgets(buffer,100,fp);
}
发生运行时错误:
运行时检查失败#3 - 变量''fp''正在使用而未定义。
我该怎么办?
>
当我写作
int main(void){
char buffer [100];
FILE * fp;
fopen(" functions.txt"," a +");
cout<< fgets(buffer,100,fp);
}
发生运行时错误:
运行时检查失败#3 - 变量''fp''正在使用而未定义。
我该怎么办?
>
How Can I Open File with fopen() and add something to my file and See That????????
解决方案
fopen( <FileName>, "a" );
or
fopen( <FileName>, "a+" );
If you want to be able to read as well as write to the file.
When i write
int main(void) {
char buffer[100];
FILE *fp;
fopen("functions.txt", "a+");
cout << fgets(buffer, 100 , fp);
}
The Runtime Error Occurs:
Run-Time Check Failure #3 - The variable ''fp'' is being used without being defined.
What Should I do?
When i write
int main(void) {
char buffer[100];
FILE *fp;
fopen("functions.txt", "a+");
cout << fgets(buffer, 100 , fp);
}
The Runtime Error Occurs:
Run-Time Check Failure #3 - The variable ''fp'' is being used without being defined.
What Should I do?
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