7. Farsi e-learning series
*
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#include <iostream.h>
int main()
{
int nomre;
cout<<"Lotfan yek nomre vared
konid !! (az 20)";
cin>>nomre;
cout<<"Sadegh e Jedari is a
"<<nomre<<" boy !";
return 0;
}
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8. Farsi e-learning series
D
#% 3 + "% "< 3 " %( ! ! ) F " b K " (5
#include <iostream.h>
int main()
{
int nomre; // here we made a variable !
cout<<" Lotfann";
cout<<" nomreye riazi e khod ra n";
cout<<" vared konid !! n";
cin>>nomre; /* here we will give the client a number that
shows his or her mark in mathmatics
and we will use it in futur */
cout<<"Your mark is not very bad ! : "<<nomre<<" n";
return 0;
}
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Lotfan
nomreye riazi e khod ra
vared konid !!
20
Your mark is not very bad ! : 20
" @ A F5
#include <iostream.h>
int main()
{
cout<<"Welcome to nnnC++ farsi
ne-learning!!n";
return 0;
}
21. ﺑﺎ آﺷﻨﺎﻳﻲC++:ﻗﺴﻤﺖﺳﻮم
- 5 -
Farsi e-learning series
ﺟﻮاب:
#include <iostream.h>
int main()
{
char a;
cout<<" Enter your selected character ! : ";
cin>>a;
switch (a)
{
case 'A':
case 'B':
case 'C':
case 'D':
cout<<"Big character ! ";
break;
case '1':
case '2':
case '3':
case '4':
cout<<" a figure ! ";
break;
case 'a':
case 'b':
case 'c':
case 'd':
cout<<" little character ! ";
break;
default:
cout<<"unknown character ! ";
break;
}
return 0;
}
زﺑﺎن در هﺎ ﺣﻠﻘﻪ هﺎﯼ ﺳﺎﺧﺘﺎرC++:
زﺑﺎن درC++ﻧ ﺳﻪﺣﻠﻘﻪ ﺳﺎﺧﺘﺎر ﻮع)ﮔﺮدش(دارد وﺟﻮد:
1-for
2-do while
3-while
ﭘﺮداﺧﺖ ﺧﻮاهﻴﻢ ﺣﻠﻘﻪ ﺳﻪ هﺮ ﺑﺮرﺳﯽ ﺑﻪ اداﻣﻪ در.
41. ﺑﺎ آﺷﻨﺎﻳﻲC++:ﭘﻨﺠﻢ ﻗﺴﻤﺖ
- 7 -
Farsi e-learning series
ﻣﺜﺎل:ﻋﺪد ﺳﻪ ﮐﻪ ﺑﻨﻮﯾﺴﻴﺪ اﯼ ﺑﺮﻧﺎﻣﻪﮐﺎ از رارﮔ ﺑﺮو ﺮﻓﺘﻪﻓﺮﺳ ﺗﺎﺑﻌﯽ ﺑﻪ را ﺁﻧﻬﺎﺑﺰ و ﺘﺎدﻩررا ﺁﻧﻬﺎ ﮔﺘﺮﯾﻦﭘﻴﺪاﭼﺎپ وﮐﻨﺪ.
#include <iostream.h>
int max ( int x, int y, int z)
{
int max=x;
if(max<y) max=y;
if(max<z) max=z;
return max;
}
int main()
{
int a,b,c;
cout<<"Enter three numbers: " <<endl;
cin>>a>>b>>c;
cout<<"The max number is = " <<max(a,b,c)<<endl;
return 0;
}
ﺻﻮرت اﯾﻦ ﺑﻪ ﯾﺎ:
#include <iostream.h>
int max ( int x, int y, int z);
int main()
{
int a,b,c;
cout<<"Enter three numbers: " <<endl;
cin>>a>>b>>c;
cout<<"The max number is = " <<max(a,b,c)<<endl;
return 0;
}
int max ( int x, int y, int z)
{
int max=x;
if(max<y) max=y;
if(max<z) max=z;
return max;
}
42. ﺑﺎ آﺷﻨﺎﻳﻲC++:ﭘﻨﺠﻢ ﻗﺴﻤﺖ
- 8 -
Farsi e-learning series
ﻣﻘﺪارﯼ هﻴﭻ ﮐﻪ ﺗﻮاﺑﻌﯽ از اﺳﺘﻔﺎدﻩ ﻧﻤﻮﻧﻪ ﯾﮏﮔﺮداﻧﻨﺪ ﺑﺮﻧﻤﯽ را:
دارد ﻗﺮار ﺻﻔﺮ از اﯼ ﻣﺤﺪودﻩ ﭼﻪ در ﮐﻨﺪ ﻣﯽ ﻣﺸﺨﺺ و ﮔﻴﺮد ﻣﯽ را ﻣﻘﺪارﯼ ﮐﻪ اﯼ ﺑﺮﻧﺎﻣﻪ.
#include <iostream.h>
void fun (int x)
{
if(x<0)
cout<<"The number is lower then zero ! " <<endl;
else
cout<<"The number is higher then zero ! (Or equal with ) " <<endl;
return ;
}
int main()
{
int a;
cout<<"Enter a number: " ;
cin>>a;
fun(a);
return 0;
}
ﺑﺴﭙﺎرﯾﺪ ﺧﺎﻃﺮ ﺑﻪ را ﺁن و ﮐﺮدﻩ ﺗﻮﺟﻪ ﺑﺎﻻ ﺗﺎﺑﻊ ﯼ اﺳﺘﻔﺎدﻩ ﺳﺎﺧﺘﺎر ﺑﻪ ﺧﻮب.ﻓﺮاﺧ ﺑﺎﻮاﻧﯽﺗﺎﺑﻊاﺟﺮا ورا ﺁن دﺳﺘﻮرات ﻋﻴﻨﺎ ﮐﻪ اﺳﺖ اﯾﻦ ﻣﺎﻧﻨﺪ ﺁن ﯼ
ﮐﻨﻴﻢ ﻣﯽ اﺟﺮا ﻣﮑﺎن هﻤﺎن در.
ﺑﮕﻴﺮد را ﻣﻘﺪارﯼ ﺗﺎﺑﻊ ﻧﺒﺎﺷﺪ ﻻزم ﺣﺘﯽ ﺟﺎﯾﯽ در اﺳﺖ ﻣﻤﮑﻦ!ﭘﺲ:
ﻣﺜﺎل:ﮐﻨﺪ ﭼﺎپ ﺻﻔﺤﻪ در ﺗﺎﺑﻌﯽ از اﺳﺘﻔﺎدﻩ ﺑﺎ ﮐﻪ اﯼ ﺑﺮﻧﺎﻣﻪ:MajidOnline.com First Persian Graphic and Web design Resource
#include <iostream.h>
void fun ()
{
cout<<"***MajidOnline.com "<<endl
<<"First Persian Graphic and Web design Resource "
<<endl;
return ;
}
int main()
{
fun();
return 0;
}
43. ﺑﺎ آﺷﻨﺎﻳﻲC++:ﭘﻨﺠﻢ ﻗﺴﻤﺖ
- 9 -
Farsi e-learning series
ﻣﻬﻢ ﯼ ﻧﮑﺘﻪ ﯾﮏ:
اﻧﻮاعﻋﻤﻮﻣﯽ هﺎﯼ ﺷﻮﻩﺗﺎﺑﻊ ﯾﮏ ﺗﻮﺳﻂ هﺎ دادﻩ ﻓﺮاﺧﻮاﻧﯽ:
1-pass by refrence
2-pass by value
ﻓﺮﻣﺎﯾﻴﺪ ﺗﻮﺟﻪ زﯾﺮ ﯼ ﺑﺮﻧﺎﻣﻪ ﺑﻪ ﺷﻴﻮﻩ اﯾﻨﺪو ﻣﻔﻬﻮم ﺷﺪن ﻣﺘﻮﺟﻪ ﺑﺮاﯼ:
#include <iostream.h>
int f1( int a )
{
return a *= a;
}
void f2( int &b )
{
b*= b;
}
int main()
{
int x = 2, z = 4;
cout << "x = " << x << " before passByValuen"
<< "Value returned by passByValue: "
<< f1( x ) << endl
<< "x = " << x << " after passByValuen" << endl;
//********
cout << "z = " << z << " before passByReference" << endl;
f2( z );
cout << "z = " << z << " after passByReference" << endl;
return 0;
}
ﯼ ﺿﻴﻮﻩ درpass by valueﺗﺎﺑﻊ از اﺳﺘﻔﺎدﻩ ﺑﺎ ﺧﻮاهﻴﻢ ﻣﯽf1ﮐﻨﻴﻢ ﻣﺮﺑﻊ را ﻣﻘﺪارﯼ.اوﻟﻴﻪ ﻣﻘﺪار در ﺗﺎﺛﻴﺮﯼ هﻴﭻ ، ﺗﺎﺑﻊ اﺟﺮاﯼ از ﺑﻌﺪ ﮐﻪ دﯾﺪ ﺧﻮاهﻴﺪ ﻧﻬﺎﯾﺖ در
ﺗ ﯼداﺷﺖ ﻧﺨﻮاهﺪ ﺎﺑﻊ.
ﻗﺴﻤﺖ ﺑﻪ اﮔﺮ اﻣﺎpass by referenceﺗﺎﺑﻊ وf2ﻋﻼﻣﺖ ﯾﮏ از دﯾﺪ ﺧﻮاهﺪ ، ﮐﻨﻴﺪ ﺗﻮﺟﻪ&)ﺳﻨﺪ ﺁﻣﭙﺮ(اﯾﻢ ﮐﺮدﻩ اﺳﺘﻔﺎدﻩ ﺁن ﻧﻮع و ارﺳﺎﻟﯽ ﻣﺘﻐﻴﺮ اﺳﻢ ﺑﻴﻦ.
ذﺧ ﺁن روﯼ ﺑﺮ ﺁﻧﺮا ، ﮔﺮﻓﺖ ﺻﻮرت ﺗﺎﺑﻊ داﺧﻞ در ﻣﺎ ارﺳﺎﻟﯽ ﻣﻘﺪار روﯼ ﮐﻪ ﺗﻐﻴﻴﺮ هﺮ اﯾﻨﮑﻪ ﯾﻌﻨﯽ اﯾﻦﮐﻦ ﻴﺮﻩ.ﺣﺎﻟﺖ در واﻗﻊ درpass by referenceاوﻟﻴﻪ ﻣﺘﻐﻴﺮ ﻣﻘﺪار
ﺷﺪ ﺧﻮاهﺪ ذﺧﻴﺮﻩ ﺁن در و ﮐﺮدﻩ ﺗﻐﻴﻴﺮ ﺗﺎﺑﻊ ﺑﻪ ارﺳﺎﻟﯽ.
داﺷﺖ ﺧﻮاهﻴﻢ ﺧﺮوﺟﯽ در درواﻗﻊ:
x = 2 before passByValue
Value returned by passByValue: 4
x = 2 after passByValue
z = 4 before passByReference
z = 16 after passByReference
ﮐﺪام هﺮ ﮐﺎر ﯼ ﺷﻴﻮﻩ ﺑﻪ ﺗﺎ دهﻴﺪ اﻧﺠﺎم ﺑﺎﻻ ﺑﺮﻧﺎﻣﻪ روﯼ زﯾﺎدﯼ ﺗﻐﻴﻴﺮات ﺗﻮاﻧﻴﺪ ﻣﯽﺑﺒﺮﯾﺪ ﭘﯽ.ﻣﺜﻼ:
1-ﺑﺮدارﯾﺪ را ﺳﻨﺪ ﺁﻣﭙﺮ ﻋﻼﻣﺖ ﯾﮑﺒﺎر.
2-دهﻴﺪ ﺗﻐﻴﻴﺮ را ﺗﻮاﺑﻊ ﻧﻮع ﮐﻨﻴﺪ ﺳﻌﯽ ﯾﮑﺒﺎر.
3-...
47. Farsi e-learning series
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int main()
{
char Doste[5];
return 0;
}
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#include <iostream.h>
int main()
{
int a[4];
cout<<"enter content of 4 elements : "<<endl ;
for(int i=0; i<4; i++)
{
cout<<"enter content of a["<<i<<"]"<<endl;
cin>>a[i];
}
return 0;
}
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48. Farsi e-learning series
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#include <iostream.h>
int main()
{
int a[4];
cout<<"enter content of 4 elements : "<<endl ;
for(int i=0; i<4; i++)
{
cout<<"enter content of a["<<i<<"]"<<endl;
cin>>a[i];
}
for(i=0; i<4; i++)
cout<<"content of a["<<i<<"]="<<a[i]<<endl;
return 0;
}
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int a[5]={24,33,49,55,63};
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#include <iostream.h>
int main()
{
int a[5]={24,33,49,55,63};
for(int i=0; i<4; i++)
cout<<"content of a["<<i<<"]="<<a[i]<<endl;
return 0;
}
int b=4;
int a[b];
int a[4];
const int b=4;
int a[b];