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1.1Thise is a C program.
l1_1.cpp
#include "stdio.h" /**/
main() /**/
{ printf("This is a C program.\n"); /**/
}
This is a C program.
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l1_2.cpp
#include "stdio.h" /**/
main() /**/
{ int a,b,c; /*a,bc*/
scanf("%d%d",&a,&b); /*ab*/
c=a+b; /*cab*/
printf("c=%d\n",c); /*c*/
}
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l1_3.cpp
#include "stdio.h" /**/
int sum(int x,int y) /*sum*/
{ int z; /*z*/
z=x+y; /*zxy*/
return (z); /*zsum*/
}
main() /**/
{ int a,b,c; /*a,bc*/
scanf("%d%d",&a,&b); /*ab*/
c=sum(a,b); /*sumc*/
printf("c=%d\n",c); /*c*/
}
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charc=?Y?;putchar(c);Y
int a=98;putchar(a+1);c
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1.51.2cincoutl1_5.cpp
#include <iostream.h> /**/
#include <iomanip.h>
main() /**/
{ int a,b,c; /*a,bc*/
cin>>a>>b; /*ab*/
c=a+b; /*cab*/
cout<<"c="<<c<<endl; /*c*/
}
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1.5.2
1.5.1
1.5
1.5.1
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C1960ALGOL 60ALGOL 601963CPLCombined Programming Language1967
CPLBCPL(Baxic Combined Programming Language)1970Ken ThompsonBCPL
BBUNIXDEC PDP-719721973Dennis RitchieBC1973Ken ThompsonDennis
RitchieUNIX901983ANSIANSI1990ISO87ANSI CISOCC
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