相关疑难解决方法(0)

Python至少有六种格式化字符串的方法:

In [1]: world = "Earth"

# method 1a
In [2]: "Hello, %s" % world
Out[2]: 'Hello, Earth'

# method 1b
In [3]: "Hello, %(planet)s" % {"planet": world}
Out[3]: 'Hello, Earth'

# method 2a
In [4]: "Hello, {0}".format(world)
Out[4]: 'Hello, Earth'

# method 2b
In [5]: "Hello, {planet}".format(planet=world)
Out[5]: 'Hello, Earth'

# method 2c
In [6]: f"Hello, {world}"
Out[6]: 'Hello, Earth'

In [7]: from string import Template

# method 3
In [8]: Template("Hello, $planet").substitute(planet=world)
Out[8]: 'Hello, Earth'

不同方法的简要历史:

• printf自Pythons婴儿期以来,风格格式一直存在 …

好吧,我知道如何打印变量和字符串.但是我如何打印"我的字符串"card.price(这是我的变量)之类的东西.我的意思是,这是我的代码: print "I have " (and here I would like to print my variable card.price).