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C 标准输入输出库 getchar() 函数

❮ C 标准输入输出库


示例

从用户输入中读取三个字符

char a, b, c;
a = getchar();
b = getchar();
c = getchar();
printf("%c %c %c", a, b, c);

定义和用法

The getchar() 函数读取一个用户输入的字符并返回其 ASCII 值。

The getchar() 函数在 <stdio.h> 头文件中定义。

注意: 更准确地说,它从 stdin 指定的位置读取,通常是键盘输入,但它可能被配置为指向文件或其他位置。


语法

getchar();

技术细节

返回值 一个 int 值,表示所读取字符的 ASCII 值。

❮ C 标准输入输出库

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