绝对经典 物超所值,经典收藏 内容如下: General C/C++ Pre-processor commands Operator Precedence Escape Sequences ASCII Chart Data Types Keywords Standard C Library Standard C I/O Standard C String & Character Standard C Math Standard C Time & Date Standard C Me mory
目 录Table of Contents GNU make中文手册..................................................................................................................... 1 ver - 3.8 ......................................................................................
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) 若ch是作废字符(0x7F)或普通控制字符(0x00-0x1F) 返