python学习——python编程从入门到实践（3）

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本文详细介绍Python中列表的基本操作，包括元素访问、修改、插入、删除及排序等实用技巧，适合初学者快速掌握列表的使用方法。

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第3章列表

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【动手试一试】练习题：
列表元素访问：

# 3-1
names = ['David','Alice','Carolina']
print('Welcome, '+ names[0] +'.')
print('Welcome, '+ names[1] +'.')
print('Welcome, '+ names[2] +'.')

列表元素修改、插入、删除：

# 3-4
visitors = ['David','Alice','Carolina']
print('Would you like to have a dinner with me,'+ visitors[0] +"?")
print('Would you like to have a dinner with me,'+ visitors[1] + '?')
print('Would you like to have a dinner with me,'+ visitors[2] + '?')
print(visitors[1] + " can't come to have the dinner")
visitors[1]='Tom'
print (visitors)
visitors.insert(0,'Simon')
visitors.append('Jared')
print(visitors)
print(visitors.pop(0) + ",I can't hvce dinner together")
print(visitors.pop(0) + ",I can't hvce dinner together")
print(visitors.pop(0) + ",I can't hvce dinner together")
del visitors[0]
visitors.remove('Jared')
print(visitors)

列表元素排序：

# 3-8
country = ['Korea','Turkey','Japan','Thailand']
print('\nHere is the original list:')
print(country)
print('\nHere is the sorted list:')
print(sorted(country))
print('\nHere is the original list again:')
print(country)
country.reverse()
print('\nHere is the reversed list:')
print(country)
country.sort()
print(country)