Idon'tunderstandhow'i'become4

html5 • • 问答

c#

how does the optput come as
3
3
4
I don't understand how 'i' become 4 for last

code:

int i = 2;
            Console.WriteLine(++i); 
            Console.WriteLine(i++);
            Console.WriteLine(i);

回答

Because you first used the prefix increment operator and then used postfix.

int i = 2;
Console.WriteLine(++i); // i became 3 *before it was used*
Console.WriteLine(i++); // i first used, still 3, and then incremented becoming 4
Console.WriteLine(i); // i is still 4

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