c# – 当你使用async-await时,我在哪里定义Task以及我等待它的位

public async Task MyMethodAsync()
{
    Task<int> longRunningTask = LongRunningOperationAsync();
    // independent work which doesn't need the result of LongRunningOperationAsync can be done here

    //and now we call await on the task 
    int result = await longRunningTask;
    //use the result 
    Console.WriteLine(result);
}

从How and When to use `async` and `await`开始,我对它是如何工作有疑问.

所以,我想说我可以添加一些“独立工作”.

public async Task MyMethodAsync()
{
    Task<int> longRunningTask = LongRunningOperationAsync();
    int millionthPrimeNumber = GetMillionthPrimeNumber();
    int result = await longRunningTask;
    //use the result 
    Console.WriteLine(result % millionthPrimeNumber);
}

获得百万分之一的素数是独立的工作,所以我希望它是夹在任务< int>之间的东西. longRunningTask = LongRunningOperationAsync();和int result = await longRunningTask;

但是,我很好奇的是我是否可以写作

public async Task MyMethodAsync()
{
    int result = await LongRunningOperationAsync();
    int millionthPrimeNumber = GetMillionthPrimeNumber();       
    //use the result 
    Console.WriteLine(result % millionthPrimeNumber);
}

这是否相同？或者任务< int> longRunningTask = LongRunningOperationAsync();和int result = await longRunningTask;实际上作为旗帜,以便可以做的独立工作是他们之间的任何事情？