#1912. 【例34.3】 统计数字字符个数
【例34.3】 统计数字字符个数
说明
输入一行字符,统计出其中数字字符的个数。输入格式
一行字符串,总长度不超过 $255$。输出格式
输出为 $1$ 行,输出字符串里面数字字符的个数。Peking University is set up at 1898.
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Peking University is set up at 1898.
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