项目二: 有一字典定义为: favorite_languages = { 'jen': 'python', 'sarah': 'c', 'edward': 'ruby', 'phil': 'python', } 分别遍历该字典的所有键和所有值,并输出。
时间: 2023-09-17 14:14:32 浏览: 34
好的,可以使用 for 循环来遍历该字典的所有键和所有值,并输出。代码如下:
```python
favorite_languages = {
'jen': 'python',
'sarah': 'c',
'edward': 'ruby',
'phil': 'python',
}
# 遍历所有键
for name in favorite_languages:
print(name)
# 遍历所有值
for language in favorite_languages.values():
print(language)
```
输出结果如下:
```
jen
sarah
edward
phil
python
c
ruby
python
```
相关问题
有一字典定义为: favorite_languages = { 'jen': 'python', 'sarah': 'c', 'edward': 'ruby', 'phil': 'python', } 分别遍历该字典的所有键和所有值,并输出
好的,以下是遍历 favorite_languages 字典的所有键和所有值的代码:
```python
favorite_languages = {'jen': 'python', 'sarah': 'c', 'edward': 'ruby', 'phil': 'python'}
# 遍历所有键
for name in favorite_languages:
print(name)
# 遍历所有值
for language in favorite_languages.values():
print(language)
```
输出结果:
```
jen
sarah
edward
phil
python
c
ruby
python
```
第一个循环遍历字典中所有的键,而第二个循环则遍历字典中所有的值。注意,第二个循环使用了 `values()` 方法来获取所有的值。
favorite_languages = { 'jen':['python', 'ruby'], 'sarah':['c'], 'eward': ['ruby','go'], 'phil':['python','haskeli'], } for name, languages in favorite_languages.items(): print(f"\n[{name.title()}'s favorite languages are:") for language in languages: print(f"\t{language.title()}")
The code you provided is iterating over a dictionary called `favorite_languages` and printing the favorite languages for each person. Here's the corrected version:
```python
favorite_languages = {
'jen': ['python', 'ruby'],
'sarah': ['c'],
'eward': ['ruby', 'go'],
'phil': ['python', 'haskell'],
}
for name, languages in favorite_languages.items():
print(f"\n{name.title()}'s favorite languages are:")
for language in languages:
print(f"\t{language.title()}")
```
This code will display the favorite languages for each person in the dictionary. The outer loop iterates over each key-value pair in the dictionary, where `name` represents the person's name and `languages` represents their list of favorite languages. The inner loop then prints each language in the list, with proper capitalization using the `title()` method.