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xiao-ming-hub 完成了作业 #68

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每个 commit 都写了点东西，解释的写注释里了。拓展功能：

  • 支持基于范围的 for 循环。
  • 支持使用 std::initializer_list、std::vector 等 STL 容器初始化，第二个模板参数就是初始化时填的。
  • 使用 std::ostream 实例输出。

xiao-ming-hub added 4 commits January 18, 2023 15:08
完成作业
4e620d4
support template
1ee2aa4
迭代器支持 调整类方法定义顺序 删点空行
fc5db27
支持了初始化列表
f7466ca 
写完后发现代码几乎和拷贝构造函数一样，于是就想着把它们合并起来。结
果发现构造函数不会写了。cppreference 说 std::ranges::range 可以实
现这个需求，但我的库不支持。我想把那一个函数写成模板（也是不会写）
所以多出来了一个参数，有点臃肿。

编译时会警告，我给 CMakeLists.txt 加上 target_compile_options(
main PUBLIC -std=c++20) 还是报（强迫症）。
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