在C语言中，我们通常会使用 scanf 和 printf 来对数据进行输入输出操作。在C++语言中，C语言的这一套输入输出库我们仍然能使用，但是 C++ 又增加了一套新的、更容易使用的输入输出库。
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1.1.6 C++输入输出（cin和cout）
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- 2026-09-21
- C++
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1.1.5 C++头文件和std命名空间
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- 2026-09-21
- C++
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1.1.3 如何编译和运行C++程序？
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1.1.4 C++命名空间（名字空间）详解
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1.1.2 C++类和对象到底是什么意思？
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