2002 问题 C: 计算数字个数

时间限制: 1s 内存限制: 128MB 提交: 4342 解决: 2937
题目描述
从键盘输入一串字符,输出字符串里的数字字符数。
输入
一串字符
输出
字符串里的数字字符数,整数
样例输入
happynewyear2019
样例输出
4
提示
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#include<stdio.h>
int main()
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