1 while True: 2 with open('8564.txt') as f: 3 r = f.readlines() 4 start = input("请输入要查询的日期,例如20180101 :") 5 end = input("请输入要查找的结束日期:例如20180201:") 6 list = [] 7 good = 0 8 9 for i in r: 10 i = i.split() 11 list.append(i) 12 for index,value in enumerate(list): 13 if value[0] >= start and value[0]<=end: 14 15 good =good+int(value[3]) 16 print("