每天CookBook之Python-035

• 字符串内嵌变量

s = '{name} has {n} messages.'

print(s.format(name='Guido', n=37))

name = 'Guido'
n = 37
s = '%(name)s has %(n)s messages.'

print(s % vars())

Guido has 37 messages.
Guido has 37 messages.