3.2.1 修改列表元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
motorcycles[0] = ‘ducati‘
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
[‘ducati‘, ‘yamaha‘, ‘suzuki‘]

3.2.2在列表中添加元素

在列表末尾添加元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
motorcycles.append(‘ducati‘
 
)
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
[‘honda‘, ‘yamaha‘, ‘suzuki‘, ‘ducati‘]

在列表中插入元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
motorcycles.insert(0,‘ducati‘)
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
[‘ducati‘, ‘honda‘, ‘yamaha‘, ‘suzuki‘]

3.2.3 從列表中刪除元素

1.使用del語句刪除元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
del motorcycles[0]
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
[‘yamaha‘, ‘suzuki‘]

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
del motorcycles[1]
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki
 
‘]
[‘honda‘, ‘suzuki‘]

使用方法pop()刪除元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
popped_motorcycles = motorcycles.pop()
print(motorcycles)
print(popped_motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
[‘honda‘, ‘yamaha‘]
suzuki

彈出列表中任何位置處的元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘]
print(motorcycles)
popped_motorcycles = motorcycles.pop(0)
print("The first motorcycle I owned was a " + popped_motorcycles.title() + ".")

[‘honda‘, ‘yamaha‘, ‘suzuki‘]
The first motorcycle I owned was a Honda.

根據值刪除元素

motorcycles = [‘honda‘, ‘yamaha‘, ‘suzuki‘,‘ducati‘]
print(motorcycles)
motorcycles.remove(‘ducati‘)
print(motorcycles)

[‘honda‘, ‘yamaha‘, ‘suzuki‘, ‘ducati‘]
[‘honda‘, ‘yamaha‘, ‘suzuki‘]

3.2 修改、添加和刪除元素