小编use*_*723的帖子

关于下面C++代码中的switch/case语句:"Case 1"显然是假的,那么它是如何/为什么进入do-while循环？

#include <iostream>

using namespace std;

int main() {

    int test = 4;

    switch(test) {
        case 1: do {
            case 2: test++;
            case 3: test++;
            case 4: cout << "How did I get inside the do-while loop?" << endl; break;
            case 5: test++;
        } while(test > 0);
        cout << test << endl;
    }
}