C 库函数 - isalpha() C 标准库 - <ctype.h> 描述 C 库函数 void isalpha(int c) 检查所传的字符是否是字母。 声明 下面是 isalpha() 函数的声明。 int isalpha(int c); 参数 c -- 这是要检查的字符。 返回值 如果 c 是一个字母,则该函数返回非零值,否则返
The isalpha() function returns non-zero if ch is an alphabetic character; otherwise returns 0. Example: C isalpha() function #include <stdio.h> #include <ctype.h> int main() { char ch; ch = 'A'; printf("\nIf %c is alphabet or not? %d",ch, isalpha(ch)); ch = '5'; printf...
如果c 是一个字母,则该函数返回非零值,否则返回 0。 实例 下面的实例演示了 isalpha() 函数的用法。 #include<stdio.h>#include<ctype.h>intmain(){intvar1='d';intvar2='2';intvar3='\t';intvar4=' ';if(isalpha(var1)){printf("var1 = |%c| 是一个字母\n",var1);}else{printf("var1...
C 库函数 - isalpha()❮ C 标准库 - <ctype.h>描述C 库函数 void isalpha(int c) 检查所传的字符是否是字母。声明下面是 isalpha() 函数的声明。int isalpha(int c); 参数c -- 这是要检查的字符。返回值如果c 是一个字母,则该函数返回非零值,否则返回 0。
ISALPHA( ) Function Determines whether the leftmost character in a character expression is alphabetic. ISALPHA(cExpression) Return Values Logical Parameters cExpression Specifies the character expression that ISALPHA( ) evaluates. Any characters after the first character incExpressionare ignored....
The isalpha() function in C++ checks if the given character is an alphabet or not. It is defined in the cctype header file. Example #include <iostream> #include <cctype> using namespace std; int main() { // check if '7' is an alphabet int result = isalpha('7'); cout << ...
新增至計劃 共用方式為 Facebookx.comLinkedIn電子郵件 發行項 2006/10/23 Determines whether the leftmost character in a character expression is alphabetic. ISALPHA(cExpression) Return Values Logical Parameters cExpression Specifies the character expression that ISALPHA( ) evaluates. Any characters after the...
C Library - isalpha() Function - The C ctype library isalpha() function is used to check if a given character is an alphabetic letter or not. If argument c is not an alphabetic letter, the function returns 0 (false).
ISALPHA( ) Function项目 2008/06/18 本文内容 Return Value Parameters Remarks Example See Also Determines whether the leftmost character in a character expression is alphabetic.复制 ISALPHA(cExpression) Return ValueLogicalParameterscExpression Specifies the character expression that ISALPHA( ) ...
ISALPHA( ) Function 發行項 2008/06/18 本文內容 Return Value Parameters Remarks Example See Also Determines whether the leftmost character in a character expression is alphabetic. 複製 ISALPHA(cExpression) Return Value Logical Parameters cExpression Specifies the character expression that ...