字符串:
使用方法修改字符串的大小写:
name = 'ada lovalace' print("首字母大写:",name.title()) print("全大写:",name.upper()) print("全小写:",name.lower())
删除空白:
name = ' ada lovalace ' print("删除末尾空白>>"+name.rstrip()+"<<") print("删除开头空白>>"+name.lstrip()+"<<") print("删除两端空白>>"+name.strip()+"<<")
在列表指定位置中插入,删除:
list.insert(位置,值)
name = [' ada lovalace ','LAO','laolao'] print("没插入前:",name) name.insert(1,'花花') print("插入后:",name)
del 列表名[位置]
name = [' ada lovalace ','LAO','laolao'] print("删除前:",name) del name[0] print("删除后:",name)
list.pop()方法
name = [' ada lovalace ','LAO','laolao'] print("删除前:",name) t=name.pop(2) print("删除后:",name) print("删除的值:",t)
list.remove[值]
name = [' ada lovalace ','LAO','laolao'] print("删除前:",name) name.remove('LAO') print("删除后:",name)
对数字列表执行简单的统计计算:
max(),min(),sum()
dir=[1,2,3,4,5,6,7,8] print("列表的最大值",max(dir)) print("列表的最小值",min(dir)) print("列表求和",sum(dir))
列表解析:
print("列表解析",[i**2 for i in range(10)])
列表复制:
一方改了,另一方没有变化
my_foods = ['pizza','falafel','carrot cake'] friend_foods = my_foods[:] my_foods.append('cannol') friend_foods.append('ice cream') print("My>>",my_foods) print('Friend>>',friend_foods)