3.6 Constants Integer or long integer constants may be written in decimal form (e.g. 1234), in binary form with 0b prefix (e.g. 0b101001), in hexadecimal form with 0x prefix (e.g. 0xff) or in octal form with 0-prefix (e.g. 0777). Unsigned integer co
c语言库函数大全--资料收集 Turbo C 2.0 函数中文说明大全 分类函数,所在函数库为ctype.h int isalpha(int ch) 若ch是字母('A'-'Z','a'-'z')返回非0值,否则返回0 int isalnum(int ch) 若ch是字母('A'-'Z','a'-'z')或数字('0'-'9'),返回非0值,否则返回0 int isascii(int ch) 若ch是字符(ASCII码中的0-127)返回非0值,否则返回0 int iscntrl(int ch
/**************************************************************************** 4位不带小数点的频率计 ****************************************************************************/ #include #include int value=0,n=0; int n,n1,n2,n3,n4; int LEDData [] = { 0xC0,
用C语言做的DOS界面的串口通信程序 void setPort(int size, char check, int stop){ unsigned char b = 0x00; disable(); switch(size){ case 6:b |= 0x01; break; case 7:b |= 0x02;break; case 8:b |= 0x03; break; } switch(check){ case 'N': case ' n':b &= ~0x08;break; case '
