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c34823a3bd
- 新增现代 C++ 教程的 Preface 章节，包括英文和中文版本 - 添加 C++ Primer 练习代码 - 新增 Learn C++ 教程的 C++ 开发简介章节 - 添加头文件解析文档 - 更新 mkdocs.yml，包含新教程的目录结构 - 修改项目设置，使用 Python 3.10环境
38 lines
879 B
C++
38 lines
879 B
C++
//
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// 4.2.unordered.map.cpp
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// chapter 04 containers
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// modern c++ tutorial
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//
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// created by changkun at changkun.de
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// https://github.com/changkun/modern-cpp-tutorial
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//
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#include <iostream>
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#include <string>
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#include <unordered_map>
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#include <map>
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int main() {
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// initialized in same order
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std::unordered_map<int, std::string> u = {
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{1, "1"},
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{3, "3"},
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{2, "2"}
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};
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std::map<int, std::string> v = {
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{1, "1"},
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{3, "3"},
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{2, "2"}
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};
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// iterates in the same way
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std::cout << "std::unordered_map" << std::endl;
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for( const auto & n : u)
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std::cout << "Key:[" << n.first << "] Value:[" << n.second << "]\n";
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std::cout << std::endl;
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std::cout << "std::map" << std::endl;
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for( const auto & n : v)
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std::cout << "Key:[" << n.first << "] Value:[" << n.second << "]\n";
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}
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