C 语言查找字符串中所有字符的 ASCII 值程序

如何使用 For 循环和 while 循环编写 C 语言程序，通过实际示例查找字符串中所有字符的 ASCII 值。

此程序使用 For 循环遍历字符串中的每个字符。在其中，我们使用了 printf 语句来打印字符及其 ASCII 值。

#include <stdio.h>
int main()
{
    char str[100];
    
    printf("\n Please Enter any String  :  ");
    scanf("%s", str);
        
    for( int i = 0; str[i] != ‘\0’; i++)
    {
        printf(" The ASCII Value of Character %c  = %d \n", str[i], str[i]);
    }
    return 0;
}

str[] = python

For 循环第一次迭代： for( int i = 0; str[i] != ‘\0’; i++)

条件为 True，因为 str[0] = p。因此，编译器将执行 printf 语句。

对于其余的 For 循环 迭代，请执行相同操作。请参考 ASCII 表 以了解 C 语言编程 中的 ASCII 值。

C 语言使用 While 循环查找字符串中所有字符的 ASCII 值程序

在此 ASCII 值程序 中，我们将 For 循环替换为 While 循环。

#include <stdio.h>
int main()
{
    char str[100];
    int i = 0;
    
    printf("\n Please Enter any String  :  ");
    scanf("%s", str);
        
    while( str[i] != '\0')
    {
        printf(" The ASCII Value of Character %c  = %d \n", str[i], str[i]);
        i++;
    }
    return 0;
}

 Please Enter any String  :  TutorialGateway
 The ASCII Value of Character T  = 84 
 The ASCII Value of Character u  = 117 
 The ASCII Value of Character t  = 116 
 The ASCII Value of Character o  = 111 
 The ASCII Value of Character r  = 114 
 The ASCII Value of Character i  = 105 
 The ASCII Value of Character a  = 97 
 The ASCII Value of Character l  = 108 
 The ASCII Value of Character G  = 71 
 The ASCII Value of Character a  = 97 
 The ASCII Value of Character t  = 116 
 The ASCII Value of Character e  = 101 
 The ASCII Value of Character w  = 119 
 The ASCII Value of Character a  = 97 
 The ASCII Value of Character y  = 121