一系列按照特定順序排列的元素組成。bicycles=
["trek"
,"cannondable"
,"redline"
,"specialized"
]print
(bicycles)
bicycles=
["trek"
,"cannondable"
,"redline"
,"specialized"
]print
(bicycles[0]
)#訪問列表第乙個元素
print
(bicycles[0]
.title())
>trek
>trek
print
(bicycles[-1
])#訪問列表最後乙個元素
print
(bicycles[-2
])#訪問列表倒數第二個元素
message=
"my first bicycle was a "
+bicycles[0]
.title()+
"."print
(message)
motorcycles=
["honda"
,"yamaha"
,"suzuki"
]print
(motorcycles)
motorcycles[0]
='ducati'
print
(motorcycles)
motorcycles=
["honda"
,"yamaha"
,"suzuki"
]print
(motorcycles)
"ducati"
)print
(motorcycles)
motorcycles=
"honda"
)"yamaha"
)"suzuki"
)
motorcycles=
["honda"
,"yamaha"
,"suzuki"
]motorcycles.insert(0,
"ducati"
)#方法insert()，指定插入元素值與索引位置
motorcycles=
["honda"
,"yamaha"
,"suzuki"
]print
(motorcycles)
del motorcycles[0]
#del 刪除指定索引位置的值
print
(motorcycles)
popped_motorcycle=motorcycles.pop(
)#方法pop()，預設刪除列表末尾的值，但任然可以訪問
print
(motorcycles)
print
(popped_motorcycle)
motorcycles=
["honda"
,"yamaha"
,"suzuki"
]first_owned=motorcycles.pop(0)
#pop()方法可指定刪除特定索引位置值
print
("the first owned was a "
+first_owned.title()+
"!")
motorcycles=
["honda"
,"yamaha"
,"suzuki"
,"ducati"
]too_expensive=
"ducati"
motorcycles.remove(too_expensive)
#remove()方法根據元素值刪除列表中元素
print
(motorcycles)
print
("\na "
+too_expensive.title()+
" is too expensive for me!"
)
cars=
["bmw"
,"audi"
,"toyota"
,"subaru"
]cars.sort(
)#方法sort()永久性對列表進行排序
print
(cars)
cars=
["bmw"
,"audi"
,"toyota"
,"subaru"
]cars.sort(reverse=
true
)#方法sort()永久性對列表進行排序,reverse=true,按照字母順序相反方向排列
print
(cars)
cars=
["bmw"
,"audi"
,"toyota"
,"subaru"
]print
("here is the ordinary list:"
)print
(cars)
print
("\nhere is the sorted list:"
)print
(sorted
(cars)
)#函式sorted()對列表進行臨時排序
print
("\nhere is the ordinary list again:"
)print
(cars)
cars=
["bmw"
,"audi"
,"toyota"
,"subaru"
]cars.reverse(
)#方法reverse()永久性反轉列表元素
print
(cars)
cars=
["bmw"
,"audi"
,"toyota"
,"subaru"
]len
(cars)
#函式len()獲取列表長度，即列表元素數量
Python開發入門到實踐
今天是個好日子，520！絕佳的告白機會啊 花痴臉 可是和我這種ds有什麼關係呢？生無可戀臉 但是，還是要只得記錄的是，今天在班車上想通一件事，對於自己喜歡的人 喜歡的事情，如果不想自己後悔，那就去努力爭取。但我想說的重點是，方法很重要！對於生性低調的人，就用低調又不失浪漫的方式告白 對於歷經現實捶打...
python入門到實踐 迴圈
python中主要的迴圈有 for迴圈和while迴圈 概念這個東西跟你白話多了也不一定能解釋的明白，直接通過例子來解釋吧。咱們從不斷的 例項中去學習和領會新的概念 囉嗦一下 在迴圈中會有3個迴圈控制語句 通過下面的例子我慢慢與你分析 usr bin env python3 coding utf 8...
python入門到實踐 for迴圈
for迴圈可以遍歷任何序列的專案，比如遍歷乙個字串的所有字母或者遍歷乙個列表中所有元素，還是老規矩，廢話不多說直接整 usr bin env python3 coding utf 8 for letter in park print park 中的字母有 letter zoo monkey tige...