https://leetcode.com/problems/search-for-a-range/

https://leetcode.com/problems/search-for-a-range/

二分就能做 

图方便用了list.index(target)  list.count(target)

如果index没有找到会抛出异常 用了try

class Solution:    # @param {integer[]} nums    # @param {integer} target    # @return {integer[]}    def searchRange(self, nums, target):        try:            startindex=nums.index(target)        except:            startindex=-1        times=nums.count(target)        if startindex==-1:            sol=[-1,-1]        else:            sol=[startindex,startindex+times-1]            return sol