c - 用C或C++将二进制字符串转换为int

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Closed 5 years ago.

Converting string of 1s and 0s into binary value
（5个答案）
我有一个0和1填充的字符串，希望从中得到一个整数：
（位于Arduino UNO的平台）

String bitString = "";
int Number;
int tmp;

bitString = "";
  for (i=1;i<=10;i++)
  {
    tmp= analogRead (A0);
    bitString +=  tmp % 2;
    delay(50);
  }
// now bitString contains for example "10100110"
// Number = bitstring to int <-------------
// In the end I want that the variable Number contains the integer 166

最佳答案

你根本不需要一串比特。就这样做：

  int n = 0;  // unsigned might be better here
  for (i = 0; i < 10; i++) {
    int bit = analogRead(A0) & 1;
    putchar('0' + bit);
    n = (n << 1) | bit;
    delay(50);
  }
  printf("\n%d\n", n);