c语言用if语句编写四则运算（if语句编写四则运算的C语言程序）

今天编程学习网为大家讲解c语言用if语句编写四则运算，有需要的小伙伴可以参考一下：

#include

#include
#include
#include
#include
void
main()
{
int
s,d=0;
int
a,b,c,z,v,m;
char
ch[4]={'+','-','x','/'};
srand((unsigned)time(null));
m=100;
b=rand()%m;
printf("%d
",b);
z=b;
for(s=0;s<3;s++)
{a=rand()%4;b=rand()%m;
printf("%c
%d
",ch[a],b);
if
(a==0)
{v=z+b;z=b;}
if
(a==1)
{v=z-b;z=b;}
if
(a==2)
{v=z*b;z=b;}
if
(a==3)
{v=z/b;z=b;}
}
printf("=
");
loop:
scanf("%d",&c);
fflush(stdin);
if
(c==v)
{printf("ok!");goto
end;}
while
(c!=v
&&
d++!=2)
{printf("it
does
not
matter
and
try
it
again:
");
goto
loop;
}
printf("the
result
is
:
%d",v);
end:getch();

}

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