c# - 如何获得值的二进制表示

Question

可能重复：
c#中的十进制到二进制转换

我有 3、432、1 等数字。我需要将这些数字转换为零和一的集合，然后将这些位存储在整数数组中，但不确定如何获得任何整数的位表示。

Answer 1

Use Convert.ToString Method (Int32, Int32)

Converts the value of a 32-bit signed integer to its equivalent string representation in a specified base.

int val = 10;
string binaryNumberString = Convert.ToString(val, 2);

To put them in an int array try:

int[] arr = new int[binaryNumberString.Length];
int i=0;
foreach (var ch in binaryNumberString)
{
    arr[i++] = Convert.ToInt32(ch.ToString());
}

Answer 2

You can use the Convert.ToString() method

int n = 50;
int b = 2;

string binaryForm = Convert.ToString(n, b);