//判断字符是否是汉字 function IsHZ(ch: WideChar): boolean; var i:integer; begin i:=ord(ch); if( i<19968) or (i>40869) then result:=false else result:=true; end; //判断字符是否是汉字 function IsHZ(ch: WideChar): boolean; var i:integer; begin i:=ord(ch); if( i<19968
使用Java中Character类的静态方法: Character.isDigit(char c) //判断字符c是否是数字字符,如‘1’,‘2’,是则返回true,否则返回false Character.isLowerCase(char c) || Character.isUpperCase(char c) //判断c是否是字母字符,前面LowerCase是小写,后面UpperCase是大写,是返回True,否则返回False Character.isLetterOrDigit(char
#include <stdio.h> #include <wctype.h> int main () { wchar_t c; ; wchar_t str[] = L"Example sentence to test iswblank\n"; while (str[i]) { c = str[i]; if (iswblank(c)) c = L'\n'; putwchar (c); i++; } ; } 输出 Ex ample sentence to test
#include <stdio.h> #include <wctype.h> int main () { ; wchar_t str[] = L"C++"; while (str[i]) { if (iswalpha(str[i])) wprintf (L"character %lc is alphabetic\n",str[i]); else wprintf (L"character %lc is not alphabetic\n
#include <stdio.h> #include <wctype.h> int main () { int i; wchar_t str[] = L"c3po..."; i=; while (iswalnum(str[i])){ i++; } wprintf (L"The first %d characters are alphanumeric.\n",i); ; } 输出 The first characters are alphan