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C stdio fclose() 函数

❮ C stdio 库


示例

读取文件内容后关闭文件

FILE *fptr;

// 以读取模式打开文件
fptr = fopen("filename.txt", "r");

// 存储文件内容
char myString[100];

// 读取内容并将其存储在 myString 中
fgets(myString, 100, fptr);

// 打印文件内容
printf("%s", myString);

// 关闭文件
fclose(fptr);
尝试一下 »

定义和用法

The fclose() 函数关闭文件。关闭文件将完成将内容保存到文件中,并清除文件指针使用的内存。

The fclose() 函数在 <stdio.h> 头文件中定义。


语法

fclose(FILE * fptr);

参数值

参数 描述
fptr 必需。文件指针,通常由 fopen() 函数创建。

技术细节

返回值 一个 int 值,如果文件成功关闭,则为 0。其他值表示发生了错误。

❮ C stdio 库

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