favorite_languages = {
'jen': 'python',
'sarah': 'c',
'edward': 'ruby',
'phil': 'python',
}
friend=['phil','sarah']
for name in favorite_languages.keys():
print(name.title())
if name in friend:
print(" Hi " + name.title() +
", I see your favorite language is " +
favorite_languages[name].title() + "!")
if name not in friend:
print(name.title()+",we invite you to our party")
这是显示的问题:
但是没有第二个if就没有这种问题。。