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Arduino - 字符判断函数
2022-07-02 22:13:00 【perseverance52】
Arduino - 字符判断函数
字符判断函数,虽然在实际编程中可能很少使用到,但是可以作为知识储备,有必要了解一些。这些函数包含在
ctype.h
当中。
- Arduino IDE路径:
C:\Program Files (x86)\Arduino\hardware\tools\avr\avr\include
int isdigit( int c )
:如果c是数字,则返回1,否则返回0。
int isalpha( int c )
:如果c是字母,则返回1,否则返回0。
int isalnum( int c )
:如果c是数字或字母,则返回1,否则返回0。
int isxdigit( int c )
:如果c是十六进制数字字符,则返回1,否则返回0。
int islower( int c )
:如果c是小写字母,则返回1,否则返回0。
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