sairate
4108f6c42d
- 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
85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
#include <iostream>
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#include <string>
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#include <vector>
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using namespace std;
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int main()
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{
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vector<int> v1; // size:0, no values.
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vector<int> v2(10); // size:10, value:0
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vector<int> v3(10, 42); // size:10, value:42
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vector<int> v4{ 10 }; // size:1, value:10
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vector<int> v5{ 10, 42 }; // size:2, value:10, 42
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vector<string> v6{ 10 }; // size:10, value:""
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vector<string> v7{ 10, "hi" }; // size:10, value:"hi"
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cout << "v1 size :" << v1.size() << endl;
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cout << "v2 size :" << v2.size() << endl;
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cout << "v3 size :" << v3.size() << endl;
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cout << "v4 size :" << v4.size() << endl;
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cout << "v5 size :" << v5.size() << endl;
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cout << "v6 size :" << v6.size() << endl;
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cout << "v7 size :" << v7.size() << endl;
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cout << "v1 content: ";
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if (v1.cbegin() != v1.cend()) {
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for (auto it = v1.cbegin(); it != v1.cend(); it++) {
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cout << *it << " , ";
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}
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cout << endl;
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}
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cout << "v2 content: ";
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if (v2.cbegin() != v2.cend()) {
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for (auto it = v2.cbegin(); it != v2.cend(); it++) {
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cout << *it << " , ";
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}
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cout << endl;
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}
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cout << "v3 content: ";
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if (v3.cbegin()!= v3.cend()) {
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for (auto it = v3.cbegin(); it != v3.cend(); it++){
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cout << *it << " , ";
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}
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cout << endl;
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}
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cout << "v4 content: ";
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if (v4.cbegin() != v4.cend()) {
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for(auto it = v4.cbegin(); it != v4.cend(); it++) {
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cout << *it << ",";
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}
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cout << endl;
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}
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cout << "v5 content: ";
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if (v5.cbegin() != v5.cend()) {
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for(auto it = v5.cbegin(); it != v5.cend(); it++) {
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cout << *it << ",";
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}
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cout << endl;
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}
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cout << "v6 content: ";
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if (v6.cbegin() != v6.cend()) {
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for(auto it = v6.cbegin(); it != v6.cend(); it++) {
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cout << *it << ",";
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}
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cout << endl;
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}
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cout << "v7 content: ";
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if (v7.cbegin() != v7.cend()) {
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for(auto it = v7.cbegin(); it != v7.cend(); it++) {
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cout << *it << ",";
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}
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cout << endl;
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}
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return 0;
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} |