指針實現字母、數字、標點符號的計數功能

#include<stdio.h> void main(void) { char arr[1024] = ""; char *p = NULL; int uppercase = 0, lowercase = 0, digit = 0, punctuator = 0; p = arr; printf("請輸入任意字符串：\n"); scanf("%s", arr); for (int i = 0;

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