Cash Wu Geek

C# - 6.0 Interpolated Strings

Posted on 2015-06-15

Before C# 6

static void Main ( string [ ] args )  
{ 
    var h = DateTime.Now.Hour; 
    var m = DateTime.Now.Minute; 
    Console.WriteLine ( "Now is {0}:{1}" , h , m ); 
    //Now is 2:12
}

C# 6

static void Main ( string [ ] args )  
{ 
    var h = DateTime.Now.Hour; 
    var m = DateTime.Now.Minute; 
    Console.WriteLine ( $"Now is {h}:{m}" ); 
    //Now is 2:12
}

//不足兩位數時前方將自動補 0
static void Main ( string [ ] args )  
{ 
    var h = DateTime.Now.Hour; 
    var m = DateTime.Now.Minute; 
    Console.WriteLine ( $"Now is {h:00}:{m:00}" ); 
    //Now is 02:12
}