摘要:
Task<string> t1=File.ReadAllTextAsync("d:/1.txt"); Task<string> t2=File.ReadAllTextAsync("d:/2.txt"); Task<string> t3=File.ReadAllTextAsync("d:/3.txt" 阅读全文
摘要:
static async Task Main(string[] args){ CancellationTokenSource cts=new CancellationTokenSource(); cts.CancelAfter(5000);//5秒之后取消操作 CancellationToken c 阅读全文