1.基础变量
name='ada lovelace'
name.title()#首字母大写
name.upper()#大写
name.lower()#小写
first_name = 'ada'
last_name = 'lovelace'
full_name = first_name + ' ' + last_name # 合并拼接
print('\tpython') # 制表符空格
print("languages:\npython\nC\njavascript") # 换行符
language = 'python'
print(language.rstrip()) # 去掉末尾空白
print(language.lstrip()) # 去掉开头空白
print(language.strip()) # 去掉头尾空白
age = 23
message = 'happy ' + str(age) + 'rd birthday!'#数字加str转换字符串
print(message)
2.列表
bicycles = ['trek', 'cannondale', 'redline', 'specialized']
print(bicycles[0].title())#切片
message = 'my first bicycle was a ' + bicycles[0].title() + '.'
print(message)
bicycles[0] = 'ducati' # 修改
bicycles.append('honda') # 在末尾添加
bicycles.insert(0, 'yamaha') # 中间插入
del bicycles[0] # 删除
popped_bicycle = bicycles.pop() # 删除末尾元素
first_owned = bicycles.pop(0) # 删除第一个
bicycles.remove('redline') # 删除特定元素
bicycles.sort() # 顺排序1
print(sorted(bicycles)) # 顺排序2
bicycles.sort(reverse=True) # 反转排序1
bicycles.reverse() # 反转排序2
print(sorted(bicycles, reverse=True)) # 反转排序3
