Python3基础 print 格式化输出 %% 输出%

   Python : 3.7.3

   OS : Ubuntu 18.04.2 LTS

  IDE : pycharm-community-2019.1.3

Conda : 4.7.5

typesetting : Markdown

code

"""
@Author : 行初心
@Date   : 2019/7/2
@Blog   : www.cnblogs.com/xingchuxin
@Gitee  : gitee.com/zhichengjiu
"""


def main():
    book_name = "本草纲目"
    book_quantity = 1
    book_price = 39.1266
    book_discount = 100

    # 注意输出内容前面的空白

    print("""
    书名:%s
    数量:%d
    单价:%f
    折扣:%d%%
    """ % (book_name, book_quantity, book_price, book_discount))


if __name__ == '__main__':
    main()

result

/home/coder/anaconda3/envs/py37/bin/python /home/coder/PycharmProjects/Base/demo.py

    书名:本草纲目
    数量:1
    单价:39.126600
    折扣:100%
    

Process finished with exit code 0

source_code

def print(self, *args, sep=' ', end='
', file=None): # known special case of print
    """
    print(value, ..., sep=' ', end='
', file=sys.stdout, flush=False)
    
    Prints the values to a stream, or to sys.stdout by default.
    Optional keyword arguments:
    file:  a file-like object (stream); defaults to the current sys.stdout.
    sep:   string inserted between values, default a space.
    end:   string appended after the last value, default a newline.
    flush: whether to forcibly flush the stream.
    """
    pass

resource

[文档 - English] docs.python.org/3
[文档 - 中文] docs.python.org/zh-cn/3
[规范] www.python.org/dev/peps/pep-0008
[规范] zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_language_rules
[源码] www.python.org/downloads/source
[ PEP ] www.python.org/dev/peps
[平台] www.cnblogs.com
[平台] gitee.com

Python具有开源、跨平台、解释型、交互式等特性，值得学习。
Python的设计哲学：优雅，明确，简单。提倡用一种方法，最好是只有一种方法来做一件事。
代码的书写要遵守规范，这样有助于沟通和理解。
每种语言都有独特的思想，初学者需要转变思维、踏实践行、坚持积累。