问Task.Run( () MethodName () )和等待Task.Run(异步() => MethodName())

EN

await MethodName();
DoSomeOtherWork();

Task yourTask = MethodName();
DoSomeOtherWork();
await yourTask;

Task<DbOneResults> dbOne= GetDbOneRecords();
Task<DbTwoResults> dbTwo = GetDbTwoRecords();
Task<DbThreeResults> dbThree = GetDbThreeRecords();

//This line is not necessary, but if you wanted all 3 done before you 
//started to process the results you would use this. 
await Task.WhenAll(dbOne, dbTwo, dbThree);

//Use the results from the 3 tasks, its ok to await a 2nd time, it does not hurt anything.
DbOneResults dbOneResults = await dbOne;
DbTwoResults dbTwoResults = await dbTwo;
DbThreeResults dbThreeResults = await dbThree;

var task = LongRunningMethodAsync();

SomeOtherWork();
SomeWorkOtherThanBefore();

awai task;

var tasks = new Task[] {
   FirstMethodAsync(),
   SecondMethodAsync(),
   ThirdMethodAsync()
};

await Task.WhenAll(tasks);