Python3基础 dict 创建字典 空字典

Posted 2021-01-08 xingchuxin

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•                    python : 3.7.0
•                           OS : Ubuntu 18.04.1 LTS
  
•                          IDE : PyCharm 2018.2.4
•                      conda : 4.5.11
•            type setting : Markdown

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code

"""
@Author : 行初心
@Date   : 18-9-23
@Blog   : www.cnblogs.com/xingchuxin
@GitHub : github.com/GratefulHeartCoder
"""


def main():
    # 1
    my_dict = {‘黄帝‘: ‘黄帝内经‘, ‘张仲景‘: ‘伤寒杂病论‘}
    print(my_dict)

    # 2
    my_dict = dict(((‘皇甫谧‘, ‘针灸甲乙经‘), (‘吴瑭‘, ‘温病条辨‘)))
    print(my_dict)

    # 3 创建空字典
    my_dict = {}
    print(my_dict)

    # 4 创建空字典
    my_dict = dict()
    print(my_dict)

    # 5 使用关键字
    my_dict = dict(李时珍=‘本草纲目‘, 孙思邈=‘千金要方‘)

    # 6
    my_dict = dict()
    my_dict[‘扁鹊‘] = ‘扁鹊内经‘
    my_dict[‘张仲景‘] = ‘???‘
    print(my_dict)

    # 7 修改已经存在的键 对应 值
    my_dict[‘张仲景‘] = ‘金匮要略‘
    print(my_dict)


if __name__ == ‘__main__‘:
    main()

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result

/home/coder/anaconda3/envs/py37/bin/python /home/coder/PycharmProjects/DataStructure/demo.py
{‘黄帝‘: ‘黄帝内经‘, ‘张仲景‘: ‘伤寒杂病论‘}
{‘皇甫谧‘: ‘针灸甲乙经‘, ‘吴瑭‘: ‘温病条辨‘}
{}
{}
{‘扁鹊‘: ‘扁鹊内经‘, ‘张仲景‘: ‘???‘}
{‘扁鹊‘: ‘扁鹊内经‘, ‘张仲景‘: ‘金匮要略‘}

Process finished with exit code 0

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resource

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

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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。