给定字典dic如下: dic = { 'python': 90, 'java': 95 } 用两种方法遍历字典dic

方法一：使用for循环遍历字典

dic = {'python': 90, 'java': 95}

# 遍历字典的key和value
for key, value in dic.items():
    print(key, value)

# 遍历字典的key
for key in dic.keys():
    print(key)

# 遍历字典的value
for value in dic.values():
    print(value)

方法二：使用字典推导式遍历字典

dic = {'python': 90, 'java': 95}

# 遍历字典的key和value
kv = [(key, value) for key, value in dic.items()]
print(kv)

# 遍历字典的key
keys = [key for key in dic.keys()]
print(keys)

# 遍历字典的value
values = [value for value in dic.values()]
print(values)