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sum/=n;

for(i=0;i=sum)

Console.write( a[i] + ¡° ¡° );

Console.writeLine (); }

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6£®Ð´³öÒÔϳÌÐòÔËÐнá¹û¡£ using System; class Test {

const int N=5;

public static void Main (){ int a = 0;

for(int i=1; i

.

.

int c=0, b=2; a+=3; c=a+b;

Console.write (c + ¡° ¡° ); } }

´ð°¸£º5 8 11 14

7. д³öÒÔϳÌÐòÔËÐнá¹û¡£ using System; class Test {

static void LE(ref int a, ref int b) { int x = a; a = b; b = x;

Console.writeLine (a + ¡° ¡° +b); }

public static void Main ()

.

.

{

int x=10, y=25;

LE(ref x, ref y);

Console.writeLine (x + ¡° ¡° +y); } }

´ð°¸£º25 10 25 10

8£®Ð´³öÒÔϳÌÐòµÄ¹¦ÄÜ¡£

static void WA(ref int[] a, int n) { for(int i=0;i

for(int j=i+1;j

int x=a[i]; a[i]=a[k]; a[k]=x; } }

.

.

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9. д³öÒÔϳÌÐòµÄÔËÐнá¹û¡£ using System; class Test {

public static void Main ()

{

int[ ] a ={2,4,6,8,10,12,14,16,18}; for (int i=0; i<9; i++) {

Console.write(¡° ¡±+a[i]); if ((i+1)%3==0) Console.writeLine();

} } }

´ð°¸£º2 4 6

.

.

8 10 12 14 16 18

10. д³öÒÔϳÌÐòÔËÐнá¹û¡£ using System; class Test {

public static void Main ()

{

int s=0;

for (int i=1; ; i++) { if (s>50) break; if (i%2==0) s+=i; }

Console.writeLine (\s);

} }

´ð°¸£ºi,s = 15, 56

.