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zifugeshutongji
- 主要实现的功能是:任意输入一字符串,可以是任意的字符,包括标点符号,空格,以及键盘上能输入的所以字符。任意确定一个关键字符,统计该关键字符在字符串中出现的次数! -Main function is to: a string of arbitrary input can be arbitrary characters, including punctuation, spaces, and the keyboard to input characters so. Arbitrarily defi