python中怎么判断用户输入的数字是否在一个字典列表的value

Question

是这样的,我有一个列表,里边元素是若干字典.　　提示用户输入一个数字,怎么判断用户输入的这个数字是否是我列表里边某一个字典的value值列表各个字典的key相同,就相当于这样:

Answer 1

# -*- coding:utf-8 -*-user = [
{"name":"Yang","weight":55,"height":172,"ID":1},
{"name":"Liu","weight":54,"height":171,"ID":2},
{"name":"Pan","weight":52,"height":170,"ID":3}
]# 这里的ID是顺序增加的Query = int(input("输入一个数字:"))# 这里判断Query是否等于user列表字典的某一个字典的ID值Flag = Falsefor item in user:    if Query == item['ID']:
        Flag = True
        breakif(Flag):
    print('存在')else:   
    print('不存在')