How to loop in a switch statement in the C language?

In C language, you can use either while or do-while loop structures to repeatedly execute a switch statement. The specific loop structure to use depends on the desired loop condition and execution order.

Here are examples of two common types of switch statements used for looping:

1. during the time that

int choice;
while (condition) {
    // 获取用户输入的选项
    scanf("%d", &choice);

    // 根据用户输入的选项执行相应的操作
    switch (choice) {
        case 1:
            // 执行操作1
            break;
        case 2:
            // 执行操作2
            break;
        case 3:
            // 执行操作3
            break;
        default:
            // 执行默认操作
            break;
    }
}

1. – repeat until

int choice;
do {
    // 获取用户输入的选项
    scanf("%d", &choice);

    // 根据用户输入的选项执行相应的操作
    switch (choice) {
        case 1:
            // 执行操作1
            break;
        case 2:
            // 执行操作2
            break;
        case 3:
            // 执行操作3
            break;
        default:
            // 执行默认操作
            break;
    }
} while (condition);

You can set appropriate loop conditions in the loop as needed (such as using boolean variables, counters, etc.) to control the number of iterations.