# 标准库stdio.h函数fgets()

**函数原型**

```c
char *fgets(char *str, int num, FILE * stream);
```

**说明**

从流中获取字符串。

这个函数可以取代C11废除的 `gets()` 函数。

**参数**

```
str: 一个字符数组指针
num: 最大字符数长度，包括结尾处的'\0'空字符
stream: 一个FILE类型的对象, 确定输入流
```

**返回值**

返回一个C-style字符串。

**实例**

```c
/* fgets example */
#include <stdio.h>

int main()
{
   FILE * pFile;
   char mystring [100];

   pFile = fopen ("myfile.txt" , "r");
   if (pFile == NULL) perror ("Error opening file");
   else {
     if ( fgets (mystring , 100 , pFile) != NULL )
       puts (mystring);
     fclose (pFile);
   }
   return 0;
}
```




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