这是一个将字符串转换为大写字母的C语言程序示例:
示例
#include <stdio.h> #include <string.h> int main() { char s[100]; int i; printf("</p><p>Enter a string : "); gets(s); for (i = 0; s[i]!='\0'; i++) { if(s[i] >= 'a' && s[i] <= 'z') { s[i] = s[i] -32; } } printf("</p><p>String in Upper Case = %s", s); return 0; }
输出
Enter a string : hello world! String in Upper Case = HELLO WORLD!
在程序中,字符串转换为大写的实际代码位于main()函数中。声明一个 char 类型的数组 s[100],该数组将存储用户输入的字符串。
然后,使用 for 循环将字符串转换为大写字符串,并使用 if 块检查 if字符为小写,则通过从其 ASCII 值中减去 32 将其转换为大写。
for (i = 0; s[i]!='\0'; i++) { if(s[i] >= 'a' && s[i] <= 'z') { s[i] = s[i] -32; } }
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