в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:20:02Z

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==Demonstrate the goto.==

<source lang="csharp">using System;

class MainClass {
public static void Main() {
for(int i=0; i < 10; i++) {
Console.WriteLine("i" + i);
if(i == 3)
goto stop;
}
stop:
Console.WriteLine("Stopped!");

}
}</source>
<pre class=codeResult>i0
i1
i2
i3
Stopped!</pre>

==The use of the goto statement in a if statement==

<source lang="csharp">class MainClass
{
public static void Main()
{
int total = 0;
int counter = 0;
myLabel:
counter++;
total += counter;
if (counter < 5)
{
System.Console.WriteLine(counter);
goto myLabel;
}
}
}</source>
<pre class=codeResult>1
2
3
4</pre>

==Use goto with a switch==

<OL><LI>The goto is C#"s unconditional jump statement.</LI><LI>When encountered, program flow jumps to the location specified by the goto.</LI><LI>The goto requires a label for operation.</LI><LI>A label is a valid C# identifier followed by a colon.</LI></OL>

<source lang="csharp">using System;

class SwitchGoto {
public static void Main() {

for(int i=1; i < 5; i++) {
switch(i) {
case 1:
Console.WriteLine("In case 1");
goto case 3;
case 2:
Console.WriteLine("In case 2");
goto case 1;
case 3:
Console.WriteLine("In case 3");
goto default;
default:
Console.WriteLine("In default");
break;
}
Console.WriteLine();
}
}
}</source>
<pre class=codeResult>In case 1
In case 3
In default
In case 2
In case 1
In case 3
In default
In case 3
In default
In default</pre>

==While with goto statement==

<source lang="csharp">using System;
class MainClass
{
static void Main(string[] args)
{
int a = 0;
while (a < 10)
{
if (a == 5)
goto cleanup;
}
cleanup :
Console.WriteLine(a);
}
}</source>

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в 15:31, 26 мая 2010

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