# 第一章 python的快速入门;薛定谔python之旅 荷兰Guidovan rossum 20+90年代设计
"""python developers guide
PEP python enhancement proposals,pep20 python之禅;monty python喜剧演员
特点:代码易读易懂 定义变量不需要指定数据类型,动态类型dynamic typing;
tip01:print parameter:sep默认值="",end="\n"
"""
#字符串成对单引号或双引号,注释功能三引号
# main_text = "hello world!"
# print(main_text)
# tips 01:print parameter:sep默认值="",end="\n"
word10,word20="Hello","World"
main_text = word10 +", "+word20
print(main_text)
print(word10,word20,end=" ")
print(word10,word20,sep="*",end="\n")
# tips 02:spam and eggs
eggs=1.8
print(eggs*20)
eggs=None
print(eggs)
# tips 03:所有变量名和函数名都应小写并带下划线,每个词直接带下划线;
print("Object"*3)
# tips 04:已知道字符串和数字两种类型,数字进一步划分为整数和浮点数,两布尔值TRUE按FALSE;
# python之禅 面对歧义,不要尝试去猜测。 明确胜于隐晦。
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