编辑代码

#include<stdio.h>
int main() {
	int count=0;
	char a[100];
	printf("请您输入一行字符: ");
	scanf("%s",a);
	for (int i = 0; a[i] != '\0'; i++)
	{
		if (a[i] > '0' && a[i] < '9')
			count++;
	}
	printf("字符串中数字个数为：%d", count);
	return 0;
}