问当用户输入错误字符时，我的do while循环将永远重复

EN

void mainmenu() {
bool wrong = false;
    system("cls");

    cout << "Hello! Welcome to the menu. ";
    cout << "\n\n";
    cout << "What would you like to do?\n";
    cout << "Options:\n";
    cout << "1. Password generator\n";
    int choice{ 0 };
    do {

        cin >> choice;


        if (choice == 1) {
            wrong = true;
            passgen();
            break;
        }

        else {
            cout << "Invalid character. Please try again." << endl;
            cin.clear();
        }
        
    } while (!wrong);