C 教程
C 語言實例 - 二進(jìn)制與十進(jìn)制相互轉(zhuǎn)換
C 語言實例二進(jìn)制轉(zhuǎn)與十進(jìn)制相互轉(zhuǎn)換。
實例 - 二進(jìn)制轉(zhuǎn)換為十進(jìn)制
#include <stdio.h>
#include <math.h>
int convertBinaryToDecimal(long long n);
int main()
{
long long n;
printf("輸入一個二進(jìn)制數(shù): ");
scanf("%lld", &n);
printf("二進(jìn)制數(shù) %lld 轉(zhuǎn)換為十進(jìn)制為 %d", n, convertBinaryToDecimal(n));
return 0;
}
int convertBinaryToDecimal(long long n)
{
int decimalNumber = 0, i = 0, remainder;
while (n!=0)
{
remainder = n%10;
n /= 10;
decimalNumber += remainder*pow(2,i);
++i;
}
return decimalNumber;
}
輸出結(jié)果為：
輸入一個二進(jìn)制數(shù): 110110111 二進(jìn)制數(shù) 110110111 轉(zhuǎn)換為十進(jìn)制為 439
實例 - 十進(jìn)制轉(zhuǎn)換為二進(jìn)制
#include <stdio.h>
#include <math.h>
long long convertDecimalToBinary(int n);
int main()
{
int n;
printf("輸入一個十進(jìn)制數(shù): ");
scanf("%d", &n);
printf("十進(jìn)制數(shù) %d 轉(zhuǎn)換為二進(jìn)制位 %lld", n, convertDecimalToBinary(n));
return 0;
}
long long convertDecimalToBinary(int n)
{
long long binaryNumber = 0;
int remainder, i = 1, step = 1;
while (n!=0)
{
remainder = n%2;
printf("Step %d: %d/2, 余數(shù) = %d, 商 = %dn", step++, n, remainder, n/2);
n /= 2;
binaryNumber += remainder*i;
i *= 10;
}
return binaryNumber;
}
輸出結(jié)果為：
輸入一個十進(jìn)制數(shù): 100 Step 1: 100/2, 余數(shù) = 0, 商 = 50 Step 2: 50/2, 余數(shù) = 0, 商 = 25 Step 3: 25/2, 余數(shù) = 1, 商 = 12 Step 4: 12/2, 余數(shù) = 0, 商 = 6 Step 5: 6/2, 余數(shù) = 0, 商 = 3 Step 6: 3/2, 余數(shù) = 1, 商 = 1 Step 7: 1/2, 余數(shù) = 1, 商 = 0 十進(jìn)制數(shù) 100 轉(zhuǎn)換為二進(jìn)制位 1100100其他擴(kuò)展