Python list methods All In One
Python 3
#!/usr/bin/env python3
# coding=utf-8
__author__ = 'xgqfrms'
__editor__ = 'vscode'
__version__ = '1.0.1'
__copyright__ = """
Copyright (c) 2012-2050, xgqfrms; mailto:[email protected]
"""
"""
/**
*
* @author xgqfrms
* @license MIT
* @copyright xgqfrms
* @created 2022-08-17
*
* @description
* @augments
* @example
* @link
*
*/
"""
# python 模版
join
arr = ['a', 'b', 'c']
strs = ''.join(arr)
print(strs)
# abc
_strs = '-'.join(arr)
print(_strs)
# a_b_c
reverse
arr = ['a', 'b', 'c']
# reverse 没有返回新 list, 没有返回值 ✅ , None
# arr.reverse()
print(arr.reverse())
# None
print(arr)
# cba
string find
arr = ['a', 'b', 'c']
s = 'b'
# AttributeError: 'list' object has no attribute 'find' ❌
if(arr.find(s) > -1):
print(True)
print(arr.find('x'))
ss = 'anc'
s = 'b'
if(ss.find(s) > -1):
print(True)
print(ss.find('x'))
list & string index
ss = 'anc'
s = 'b'
if(ss.find(s) > -1):
print(True)
print(ss.find('x'))
# -1
print(ss.index('x'))
# ValueError: substring not found ❌
pop
append
remove
count
sort
clear
copy
insert
extend
range
# 左闭右开 [begin, end), 步长 step
steps = list(range(0, 10, 3))
# [0, 3, 6, 9]
slice
for...in
refs
https://www.programiz.com/python-programming/methods/string/join
https://www.runoob.com/python3/python3-list.html
https://stackoverflow.com/questions/493819/why-is-it-string-joinlist-instead-of-list-joinstring
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标签：__,arr,methods,Python,list,xgqfrms,print,find From： https://www.cnblogs.com/xgqfrms/p/16599715.html