?? 3_2.cpp
字號:
//3_2.cpp
#include <iostream>
using namespace std;
double power (double x, int n);
void main(void)
{
int i;
int value = 0;
char ch;
cout << "Enter an 8 bit binary number ";
for (i = 7; i >= 0; i--)
{
cin >> ch;
if (ch == '1')
value += int(power(2,i));
}
cout <<"Decimal value is "<<value<<endl;
}
double power (double x, int n)
{
double val = 1.0;
while (n--)
val *= x;
return(val);
}
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