Python_列表

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

print('取到最后一位：',name[0:])

print('取到倒数第二位：',name[0:-1])

print('取到第三位：',name[0:3])

print('从左到右隔一个取一个：',name[0::2])

print('从第四个从右到左取：',name[3::-1])

取到最后一位： ['chenzhang', 'zhangsan', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba']]
取到倒数第二位： ['chenzhang', 'zhangsan', 'lisi', 'wangwu', 'zhaoliu']
取到第三位： ['chenzhang', 'zhangsan', 'lisi']
从左到右隔一个取一个： ['chenzhang', 'lisi', 'zhaoliu']
从第四个从右到左取： ['wangwu', 'lisi', 'zhangsan', 'chenzhang']

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

name.append('majiu')  # 默认添加到最后的位置

print(name)

name.insert(2,'yueqin')    # 将yueqin添加到列表第二的位置

print(name)

['chenzhang', 'zhangsan', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba'], 'majiu']
['chenzhang', 'zhangsan', 'yueqin', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba'], 'majiu']

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

name[0] = 'xiaohan'      # 根据索引修改

print(name)

name[0:-1]=['libai','taiji']  # 切片修改

print(name)

['xiaohan', 'zhangsan', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba']]
['libai', 'taiji', ['sunqi', 'qianba']]

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

name.remove(name[0])     # 根据索引删除

print(name)

name.remove(['sunqi','qianba'])   # 根据内容删除

print(name)

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

a_name = name.pop(1)   # 删除后返回删除内容

print(name)        # 删除后的结果

print(a_name)       # 返回删除内容

del name[2]     # 根据索引删除

print(name)

del name     # 全部删除

['zhangsan', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba']]
['zhangsan', 'lisi', 'wangwu', 'zhaoliu']
['chenzhang', 'lisi', 'wangwu', 'zhaoliu', ['sunqi', 'qianba']]
zhangsan
['chenzhang', 'lisi', 'zhaoliu', ['sunqi', 'qianba']]

name = ['chenzhang','zhangsan','chenzhang','wangwu','zhaoliu',['sunqi','chenzhang']].count('chenzhang')    

print(name)

2

a = [1, 2, 3]
b = [7, 5, 6]

a.extend(b)

print(a)

print(b)

[1, 2, 3, 7, 5, 6]
[7, 5, 6]

name = ['chenzhang','zhangsan','lisi','wangwu','zhaoliu',['sunqi','qianba']]

weizhi = name.index('wangwu')   # 查找索引位置

print(weizhi)

print('取出索引号+1位置后面的数据：',name[weizhi+1])

b = name[weizhi+1:]    # 取出索引号后面所有的数据

print(b)

print('查找zhaoliu的位置：',b.index('zhaoliu'))

c = weizhi+b.index('zhaoliu')+1      # 3+0+1

print(c)

print(name[c])

3
取出索引号+1位置后面的数据： zhaoliu
['zhaoliu', ['sunqi', 'qianba']]
查找zhaoliu的位置： 0
4
zhaoliu