cs-guide/docs/python-tutor/tips/print.md

一些变量小技巧

:::tip

https://docs.python.org/3/library/string.html :::

旧式字符串格式化（％ 运算符）

print("hello %s, this is %d" %('world',45))

变量替换:

新式字符串格式化（str.format）

print('{2}, {1}, {0}'.format('a', 'b', 'c'))
print("hello {name}, this is {total}".format(name='world',total=45))

字符串插值 / f-Strings（Python 3.6+)

name,total='world',45
print(f"hello {name}, this is {total}" )

模板字符串（标准库）

s = Template('$who likes $what')
print(s.substitute(who='tim', what='kung pao'))
d=dict(who='tim')
Template('$who likes $what').safe_substitute(d)