# Functions
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*
* 占位符相关
* @see
* @param
*/.
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*
* 一个示例
* @see https://zhuanlan.zhihu.com/p/225999835
* @param
*/.
*
* 这几个函数功能分别类似于fmt.Scan、fmt.Scanf、fmt.Scanln三个函数，只不过它们不是从标准输入中读取数据而是从io.Reader中读取数据
* @see
* @param
*/.
*
* scan相关
* @see
* @param
*/.
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