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C++文件流问题

2025-03-16 05:45:14

推荐回答（2个）

回答1：

is.get()就是从is这个文件流拿一个字符
c=is.get()就是返回的字符赋值给c
假如返回值是EOF，那就说明文件结束了（EOF是个系统的宏定义，就是-1）
文件没结束，那就不断地往ch这个数组里面写，读到啥写啥，文件比较大的话会溢出的。。

回答2：

应该是通过对i的递增操作来使把从文件中读出的数据付给字符数组，
is将文件读入后指针位于文件首，通过is.get()把数据读出，付给c，再用c把数据付给字符数组，而while ( (c = is.get()) != EOF)就是判断文件是否读完

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