Python 3 Data Types All In One

Python 3.x

https://github.com/xgqfrms/Python-3.x-All-In-One

Data Types — Python 3.9.5 documentation

https://docs.python.org/3/library/datatypes.html
https://docs.python.org/zh-cn/3/library/datatypes.html

https://docs.python.org/3/library/stdtypes.html
https://docs.python.org/zh-cn/3/library/stdtypes.html

List

列表，类似 js 数组

#!/usr/bin/python3

# 定义 List 列表
list = [ 'xgqfrms', 985 , 3.14, 'eric', 211 ];
tinylist = [2021, 'webfullstack'];

# 输出完整列表, print(var, , '\n'); 换行
print (list, '\n');
# ['xgqfrms', 985, 3.14, 'eric', 211]

# 输出列表第一个元素
print (list[0], '\n');
# xgqfrms

# 从第二个开始输出到第三个元素, 截取 List[startIndex, endIndex] (左闭右开)
print (list[1:3], '\n');
# [985, 3.14]

# 输出从第三个元素开始的所有元素
print (list[2:], '\n');
# [3.14, 'eric', 211]

# 输出两次列表，复制，double
print (tinylist * 2, '\n');
# [2021, 'webfullstack', 2021, 'webfullstack']


# 连接列表, 合并，拼接 List, join 
print (list + tinylist, '\n');
# ['xgqfrms', 985, 3.14, 'eric', 211, 2021, 'webfullstack']