Question

下面是字典：

std[name]={'uid':uid ,'age':age,'subject':{'math':math,'phy':phy,'chem':chem}}

输出应为：

列出name和uid。

这是我的代码：

std={}
i=0
n=int(raw_input("How many Entries you have to fill:"))
for i in range (n):
   name=raw_input("Enter name:")
   uid=raw_input("ID:")
   age=raw_input("Age:")
   print("----Marks----")
   math=raw_input("Maths:")
   phy=raw_input("Physics:")
   chem=raw_input("Chemistry:")
   std[name]={'Uid':uid,'Age':age,'subject'{'math':math,'phy':phy,'chem':chem}}
   print('\n')
print(std['name']['uid'])

Answer 1

你可以使用python 3.x中的

：

for k,v in std.items():
    print(k,v['Uid'])

python 2.x中的

：

for k,v in std.iteritems():
        print(k,v['Uid'])

python 3.x代码：

std={}
n=int(input("How many Entries you have to fill:"))

for i in range (n):
    name=input("Enter name:")
    uid=input("ID:")
    age=input("Age:")
    print("----Marks----")
    math=input("Maths:")
    phy=input("Physics:")
    chem=input("Chemistry:")
    std[name]={'Uid':uid,'Age':age,'subject':{'math':math,'phy':phy,'chem':chem}}
    print('\n')
for k,v in std.items():
    print(k,v['Uid'])

两个不同名称的输入和结果将是：

How many Entries you have to fill:2

Enter name:John
ID:15895
Age:18
----Marks----
Maths:15
Physics:15
Chemistry:15


Enter name:Beck
ID:52256
Age:54
----Marks----
Maths:52
Physics:52
Chemistry:21


John 15895
Beck 52256

打印键和字典中只有一个值

1 个答案: