- 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 = "本草綱目"
book_quantity = 1
book_price = 39.1266
print("""
書名:%s
數量:%d
單價:%f
""" % (book_name, book_quantity, book_price))
# 保留三位小數
print("%.3f" % book_price)
# 整數的位數不夠,在左側用0來湊。位數夠的話,沒有影響。
print("%04d" % book_quantity)
if __name__ == '__main__':
main()
result
/home/coder/anaconda3/envs/py37/bin/python /home/coder/PycharmProjects/Base/demo.py
書名:本草綱目
數量:1
單價:39.126600
39.127
0001
Process finished with exit code 0
source_code
def print(self, *args, sep=' ', end='\n', file=None): # known special case of print
"""
print(value, ..., sep=' ', end='\n', 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
- [文檔 - English] docs.python.org/3
- [文檔 - 中文] docs.python.org/zh-cn/3
- [規范] www.python.org/dev/peps/pep-0008
- [規范] zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_language_rules
- [源碼] www.python.org/downloads/source
- [ PEP ] www.python.org/dev/peps
- [平台] www.cnblogs.com
- [平台] gitee.com
Python具有開源、跨平台、解釋型、交互式等特性,值得學習。
Python的設計哲學:優雅,明確,簡單。提倡用一種方法,最好是只有一種方法來做一件事。
代碼的書寫要遵守規范,這樣有助於溝通和理解。
每種語言都有獨特的思想,初學者需要轉變思維、踏實踐行、堅持積累。