摘要：
public static void printOddTimesNum2(int[] arr) { int eor = 0; for (int c : arr) { eor ^= c; } //eor = a^b //eor != 0; //eor二进制位必然有一位等于1 int rightOne 阅读全文
摘要：
public class EvenTimesOddNum1 { public static void printOddTimesNum1(int[] arr){ int eor = 0; for (int i = 0;i<arr.length;i++){ eor = eor ^ arr[i]; } 阅读全文