0X07遍历字典

# -*- coding:utf-8 -*-
#!/usr/bin/python

‘‘‘
一；遍历字典
‘‘‘

‘‘‘
1；遍历所有的建---值对
‘‘‘

user_0 = {
    ‘username‘ : ‘aaorn‘,
    ‘first‘ : ‘wang‘,
    ‘last‘ : ‘tao‘
}

for key,value in user_0.items():
    print("key: " + key )
    print("value: " + value + ‘\n‘)

# -*- coding:utf-8 -*-
#!/usr/bin/python

‘‘‘
一；遍历字典
‘‘‘

‘‘‘
1；按顺序遍历字典中的所有的建
‘‘‘

user_0 = {
    ‘username‘ : ‘aaorn‘,
    ‘first‘ : ‘wang‘,
    ‘last‘ : ‘tao‘
}

for key in user_0.keys():
    print(key)

print(‘\n‘)

for key in sorted(user_0.keys()):
    print(key)

# -*- coding:utf-8 -*-
#!/usr/bin/python

‘‘‘
一；遍历字典
‘‘‘

‘‘‘
1；遍历字典中的所有值
‘‘‘

user_0 = {
    ‘username‘ : ‘aaorn‘,
    ‘first‘ : ‘wang‘,
    ‘last‘ : ‘tao‘
}

for key in user_0.values():
    print(key)

print(‘\n‘)

for key in sorted(user_0.values()):
    print(key)