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Java 流、File、scanner和IO
在编程中,我们经常需要用户参与,通过获取用户输入进行数据处理。而Java.io 包几乎包含了所有操作输入、输出需要的类。所有这些流类代表了输入源和输出目标。 一个流可以理解为一个数据的序列。输入流表示从一个源读取数据,输出流表示向一个目标写数据 ...
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