二分法 找到k的位置mid,然后k必然在left和right之间,遍历即可 public class Solution { public int GetNumberOfK(int [] array , int k) { if(array==null||array.length==0) return 0; int left=0,right=array.length-1; int mid=0,cnt=0; while(left<right){ mid=left+(right-left)/2; if(array[mid]>k) right=mid-1; else if(array[mid...