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zyj8119

ľ³æ (ÖøÃûдÊÖ)

[½»Á÷] ¡¾×ªÌû¡¿DLAÄ£ÐÍ´úÂ루VB£¬FORTRAN£©ÒÑÓÐ4È˲ÎÓë

ÕâÊÇÄ£ÄâÁ£×ÓÔÚ»ùƬÉϵÄËæ»úÐÐ×ߺͼ¯¾Û£¬¸ÃÄ£ÄâÊÇÔÚ100 *100 µÄÕý·½ÐεãÕóÉϽøÐÐ.ÔÚµãÕóÖÐÑë(50,50)ÉèÖÃÖÖÁ£×Ó£¬È»ºó´ÓÔ¶ÀëÖÖÁ£×Ӱ뾶Ϊr=40 µÄÍâÔ²ÉÏËæ»úÊÍ·ÅÁ£×Ó£¬Á£×ÓÔÚµãÕóÉÏÁ£×ÓÊÍ·Å×÷Ëæ»úÐÐ×ߣ¬Ã¿Òƶ¯Ò»²½£¬¶¼Òª²âÊÔËüµÄ×îÁÚ½üλÖÃÊÇ·ñ´æÔÚ¾Û¼¯Ìå»òÖÖÁ£×Ó£¬Èç¹û´æÔÚ£¬Á£×ÓÍ£Ö¹Ô˶¯²¢Éú³¤ÏÂÀ´,Èç¹ûûÓУ¬Á£×Ó¼ÌÐøÔ˶¯£»Èç¹ûÁ£×ÓÔ˶¯µ½Ô²ÖÜR=48 µÄÇøÓòÒÔÍ⣬½«ÆäÉáÆú£¬ÔÙÊÍ·ÅÒ»¸öÁ£×Ó£¬Ö±ÖÁÊÍ·ÅÍêËùÓеÄÁ£×Ó¡£
CODE:
Private Sub Command1_Click()  
Dim x As Integer, y As Integer, r As Integer, l As Integer, i As Integer, k As Integer, t1 As Integer   
Dim j As Integer  
Dim rg As Single   
Dim a(100, 100)   
For x = 1 To 100  
   For y = 1 To 100  
     a(x, y) = 0
   Next y  
Next x   
r = 40: a(50, 50) = 1
For l = 1 To 3000  
  Randomize Timer
  x = Int(80 * Rnd() + 10)   
  y = Int(Sqr(Abs(r * r - (x - 50) * (x - 50))))   
  i = Int(2 * Rnd())
  If i = 0 Then y = 50 + y   
  If i = 1 Then y = 50 - y  
  k = Int(2 * Rnd())
  If k = 1 Then  
     t1 = y: y = x: x = 1  
  End If   
Do  
j = Int(4 * Rnd())  
If j = 0 Then x = x + 1   
If j = 1 Then x = x - 1
If j = 2 Then y = y + 1  
If j = 3 Then y = y - 1   
rg = Sqr((x - 50) ^ 2 + (y - 50) ^ 2)
If rg > 48 Then GoTo 1:
Loop Until a(x + 1, y) = 1 Or a(x - 1, y) = 1 Or a(x, y + 1) = 1 Or a(x, y - 1) = 1
a(x, y) = 1: DrawWidth = 3: PSet (x, y)
GoTo 1:
1: Next   
End Sub   

Private Sub Form_Load()  
Randomize Timer  
Scale (-10, 105)-(105, -20)
End Sub

[ Last edited by zyj8119 on 2010-9-11 at 21:14 ]
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zyj8119

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ÒýÓûØÌû:
Originally posted by zyj8119 at 2010-09-11 11:05:52:
ÕâÊÇÄ£ÄâÁ£×ÓÔÚ»ùƬÉϵÄËæ»úÐÐ×ߺͼ¯¾Û£¬¸ÃÄ£ÄâÊÇÔÚ100 *100 µÄÕý·½ÐεãÕóÉϽøÐÐ.ÔÚµãÕóÖÐÑë(50,50)ÉèÖÃÖÖÁ£×Ó£¬È»ºó´ÓÔ¶ÀëÖÖÁ£×Ӱ뾶Ϊr=40 µÄÍâÔ²ÉÏËæ»úÊÍ·ÅÁ£×Ó£¬Á£×ÓÔÚµãÕóÉÏÁ£×ÓÊÍ·Å×÷Ëæ»úÐÐ×ߣ¬Ã¿Òƶ¯Ò»²½£¬ ...

¶Ô±Èһϣ¬DLAµÄFORTRAN´úÂ룺
DLAÄ£ÐÍÊÇÄ£Äâ²ÄÁÏÉú³¤µÄ×î»ù±¾µÄÄ£ÐÍ£¬ÆäÖ÷Ҫ˼ÏëÊÇ£º¼ÙÉèһƽÃæ·½ÐεãÕó(Ò²¿ÉÒÔÊDZðµÄÐÎ×´)µÄÖÐÑëÏÈ·ÅÈëÒ»¸ö¾²Ö¹Á£×Ó£¬ÔÚÇøÓò±ß½çËæ»úÊÍ·ÅÒ»¸öÐÂÁ£×Ó£¬Á£×Ó×öÎÞ¹æÐÐ×ߣ¬Èç¹ûÅöµ½ÖÐÑëµÄÁ£×ÓÔòÄý¾Û²» ¶¯£»Èç¹ûÔÙ´ÎÅöµ½Íâ±ß½çÔò²»ÔÙ¿¼ÂÇËü£¬ÕâʱÔÚÇøÓòÖÐÔÙ²úÉúÒ»¸öÐÂÁ£×Ó£¬Í¬Ñù×öÎÞ¹æÐÐ×ß £¬Åöµ½ÖмäÒÑ´æÔÚµÄÁ£×ÓÔòÄý¾Û£¬µÈµÈ¡£ÓüÆËã»úºÜÈÝÒ×Ä£ÄâÉÏÊö¹ý³Ì£¬Ä£Äâ½á¹û·¢ÏÖÄܹ»Éú³É¸÷ÖÖ¸÷ÑùµÄ·ÖÐνṹ£¬ËüÃǺÜÏñ×ÔÈ»´æÔÚµÄÊ÷֦״ÎïÌå¡£ÔÚÎÒ±àдµÄ³ÌÐòÖÐûÓп¼ÂÇʵ¼ÊµÄÄÜÁ¿¹ØϵËùÒÔÕâ¸öÄ£ÐÍ´ó¼Ò¿ÉÒԸĽø£¬ÔÚʵ¼Ê¹ý³ÌÖÐÀë×ÓµÄÀ©É¢ÊÇÓÉÒªÀ©É¢µÄÁ½¸öµãÖ®¼äµÄÊÆÄܾö¶¨µÄ£¬Õâ¸öÊÆÄܼÆËãºÜ¸´ÔÓµ«¶¼Óмò»¯Ä£ÐÍ£¬Ò»°ã¶¼²ÉÓÃmorseÊÆ»òÀÕÄɵÂ---Çí˹ÊÆ£¬ÓÃÊÆÄÜÅжÏÀ©É¢µÄ·½Ïò¡£ÎÒÔÚÕâÀï²ÉÓõÄÊÇËæ»úÊýnum3£¬´ó¼Ò¿ÉÒÔÐÞ¸ÄΪÊÆÄÜ¡£ÎÒÑ¡ÓõĵãÕóΪ101*101µÄ¶þλ·½¸ñ×Ó£¬ÔÚÖÐÐÄ´¦£¨51£¬51£©·ÅÁËÒ»¸öÁ£×Ó£¬Í¨¹ýnum1,num2É趨Á£×ÓͶ·ÅµÄλÖã¬ÓÃnum3¾ö¶¨Á£×ÓµÄÀ©É¢·½Ïò¡£
CODE:
program DLA 

implicit none 
integer::x,y,i,j,k,Particle
integer::a(101,101)
real::num1,num2,num3
forall(i=1:101,j=1:101)
a(i,j)=0   
end forall
a(51,51)=1   
open(unit=10,file='a.txt')
do Particle=1,2000   
   call random_number(num1)
   x=int(100*num1+1)   
   call random_number(num2)
   y=int(100*num2+1)   
   do while(a(x,y)/=1)      
      call random_number(num3)
      k=int(4*num3)
      if (x<=0 .or. x>=101 .or. y<=0 .or. y>=101)  exit
      if (x-1<=0 .or. x+1>=101 .or. y-1<=0 .or. y+1>=101)  exit  
      select case(k)      
      case(0)      
        if (a(x+1,y)/=1)then
        x=x+1  
        else  
        x=x
        y=y   
        a(x,y)=1
        end if   
        if(x>=101) exit         
      case(1)           
        if (a(x-1,y)/=1)then
        x=x-1  
        else
        x=x   
        y=y
        a(x,y)=1
        end if   
        if(x<=0) exit               
      case(2)  
        if (a(x,y+1)/=1)then
        y=y+1   
        else  
        x=x
        y=y
        a(x,y)=1
        end if   
        if(y>=101) exit                 
      case(3)  
        if (a(x,y-1)/=1)then
        y=y-1
        else
        x=x
        y=y
        a(x,y)=1
        end if
        if(y<=0) exit                       
      end select        
    end do            
end do  
write(10,"(101(101i2,/))")   
close(10,status='keep')  
end

[ Last edited by zyj8119 on 2010-9-11 at 14:43 ]
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zyj8119

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by zyj8119 at 2010-09-11 11:11:10:

¶Ô±Èһϣ¬DLAµÄFORTRAN´úÂ룺
DLAÄ£ÐÍÊÇÄ£Äâ²ÄÁÏÉú³¤µÄ×î»ù±¾µÄÄ£ÐÍ£¬ÆäÖ÷Ҫ˼ÏëÊÇ£º¼ÙÉèһƽÃæ·½ÐεãÕó(Ò²¿ÉÒÔÊDZðµÄÐÎ×´)µÄÖÐÑëÏÈ·ÅÈëÒ»¸ö¾²Ö¹Á£×Ó£¬ÔÚÇøÓò±ß½çËæ»úÊÍ·ÅÒ»¸öÐÂÁ£×Ó£¬Á£×Ó×öÎÞ¹æÐÐ×ߣ¬Èç¹ûÅö ...

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zyj8119

ľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by zyj8119 at 2010-09-11 11:24:17:

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   end select
    end do
  write(10,*) x, y
close(10,status='keep')
end do
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