Python学习日志 - 6.字典（习题解答）

#6-1 人people = { "first_name" : "Bill", "last_name" : "Gate", "age" : 34, "city" : "Los Angeles"}
#6-2 喜欢的数字numbers = { "bill" : 2, "john" : 3, "mary" : 4, "nick" : 5, "david" : 6}for key in numbers.keys(): print("{0} loves number {1}".format(key, numbers[key]))
#6-3&4 词汇表opcode = { "\\n" : "out put a enter key", "\\r" : "move the cur to the beginning of the line", "\\t" : "out put a tap key", "main" : "main function of a c progrem", "int" : "data type refer to integer"}for key in opcode.keys(): print("{0} : {1}".format(key, opcode[key]))
#6-5 河流river = { "nile" : "egypt", "Changjiang" : "china", "HuangHe" : "china"}for key in river.keys(): print("The {0} runs through {1}".format(key, river[key]))for key in river.keys(): print(key)for key in river.keys(): print(river[key])
#6-7people1 = { "first_name": "July", "last_name": "Gate", "age": 34, "city": "Los Angeles"}people2 = { "first_name": "Lucy", "last_name": "Gate", "age": 34, "city": "Los Angeles"}people3 = { "first_name": "Bill", "last_name": "Gate", "age": 34, "city": "Los Angeles"}
list1 = [people1, people2, people3]for peo in list1: print(peo['first_name'] + " " + peo['last_name'])