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Table of Contents
- ctype_alnum ¡ª Check for alphanumeric character(s) ¼ì²é×Ö·û´®ÖÐÖ»°üº¬Êý×Ö»ò×Öĸ£¬Ï൱ÓÚÕýÔò[A-Za-z0-9]. Óзµ»ØÖµ¡£
- ctype_alpha ¡ª Check for alphabetic character(s)¡¡¡¡¼ì²é×Ö·û´®ÖÐÖ»°üº¬×Öĸ¡£ Óзµ»ØÖµ¡£
- ctype_cntrl ¡ª Check for control character(s)¡¡¡¡ ¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬" '\n' '\r' '\t' " ÕâÑùµÄ¿ØÖÆ×Ö·û¡£ Óзµ»ØÖµ
- ctype_digit ¡ª Check for numeric character(s)¡¡¡¡¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬Êý×Ö¡£ Óзµ»ØÖµ¡£
- ctype_graph ¡ª Check for any printable character(s) except space¡¡¡¡¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬¿ÉÒÔÊä³öµÄ×Ö·û¡£ Óзµ»ØÖµ¡£
- ctype_lower ¡ª Check for lowercase character(s) ¡¡¡¡¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬Ð¡Ð´µÄÓ¢ÎÄ×Öĸ¡£ Óзµ»ØÖµ¡£
- ctype_print ¡ª Check for printable character(s)¡¡¡¡¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬¿ÉÒÔ´òÓ¡µÄ×Ö·û¡£ Óзµ»ØÖµ¡£
- ctype_punct ¡ª Check for any printable character which is not whitespace or an alphanumeric character ¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬¿ÉÒÔ´òÓ¡µÄ×Ö·û£¬²¢ÇÒÕâÑù×Ö·û²»ÄÜÊÇ·Ç¿Õ¸ñ¡¢Êý×Ö¡¢×Ö·û¡£ Óзµ»ØÖµ¡£
- ctype_space ¡ª Check for whitespace character(s) ¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬¿Õ¸ñ»òÕß" " . Óзµ»ØÖµ
- ctype_upper ¡ª Check for uppercase character(s)¡¡ ¼ì²é×Ö·û´®ÖÐÊÇ·ñÖ»°üº¬´óдµÄÓ¢ÎÄ×Öĸ¡£ Óзµ»ØÖµ¡£
- ctype_xdigit ¡ª Check for character(s) representing a hexadecimal digit¡¡¡¡¼ì²é×Ö·û´®ÖÐÊÇ·ñÊÇ16½øÖƵÄ×Ö·û´®¡£
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