尝试使用async时出现以下错误IEnumerable.SelectMany内的lambda:varresult=myEnumerable.SelectMany(async(c)=>awaitFunctions.GetDataAsync(c.Id));Thetypeargumentsformethod'IEnumerableSystem.Linq.Enumerable.SelectMany(thisIEnumerable,Func>)'cannotbeinferredfromtheusage.Tryspecifyingthetypeargumentsexplicitly在哪里GetDa

尝试使用async时出现以下错误IEnumerable.SelectMany内的lambda:varresult=myEnumerable.SelectMany(async(c)=>awaitFunctions.GetDataAsync(c.Id));Thetypeargumentsformethod'IEnumerableSystem.Linq.Enumerable.SelectMany(thisIEnumerable,Func>)'cannotbeinferredfromtheusage.Tryspecifyingthetypeargumentsexplicitly在哪里GetDa