c# 7.0 學習筆記

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out 可以寫在裡面了

// int result = 0; 不需要寫在外面了 
if (!int.TryParse(input, out int result)){        return null;}return result;

 

Local functions, 終於有了, 寫習慣 js 的我超愛 

[Route("")]public async Task<IActionResult> Index(){    string abc = dada();    string dada()    {        return "a";    }}

 

getter setter 

// Expression-bodied constructorpublic ExpressionMembersExample(string label) => this.Label = label;// Expression-bodied finalizer~ExpressionMembersExample() => Console.Error.WriteLine("Finalized!");private string label;// Expression-bodied get / set accessors.public string Label{    get => label;    set => this.label = value ?? "Default label";}

 

c# 7.0 學習筆記