关于#c语言#的问题：从键盘读入一串字符

Question

C语言问题，我想请教一下各位，
从键盘读入一串字符，以 '!' 结束，分别统计其中数字0，1，2... 9出现的次数。

输入：1902d76k5910!
输出：The character 0 appears 2 times
The character 1 appears 2 times
The character 2 appears 1 times
The character 3 appears 0 times
The character 4 appears 0 times
The character 5 appears 1 times
The character 6 appears 1 times
The character 7 appears 1 times
The character 8 appears 0 times
The character 9 appears 2 times

Answer 1

点击右侧采纳即可：

#include <stdio.h>

int main() {
  char c;
  int count[10] = {0};

  while ((c = getchar()) != '!') {
    if (c >= '0' && c <= '9') {
      count[c - '0']++;
    }
  }

  for (int i = 0; i < 10; i++) {
    printf("The character %d appears %d times\n", i, count[i]);
  }

  return 0;
}