C++一个接一个地执行一个子流程迭代

#include <iostream>
using namespace std;

int main() {
    for (int i = 0; i < 5; ++i) {
        cout << "Iteration " << i + 1 << endl;
    }
    return 0;
}

#include <iostream>
using namespace std;

int main() {
    int i = 0;
    while (i < 5) {
        cout << "Iteration " << i + 1 << endl;
        ++i;
    }
    return 0;
}

#include <iostream>
using namespace std;

int main() {
    int i = 0;
    do {
        cout << "Iteration " << i + 1 << endl;
        ++i;
    } while (i < 5);
    return 0;
}

int i = 0;
while (i < 5) {
    cout << "This will loop forever!" << endl;
    // 缺少 i++ 导致无限循环
}

int i = 0;
while (i < 5) {
    cout << "Iteration " << i + 1 << endl;
    ++i; // 正确更新循环变量
}