源：DataCamp
datacamp 的 DAILY PRACTICE + 日常收集。
缺一
Methods
You can think of methods as functions that "belong to" Python objects.
String Methods
# string to experiment with: room room = "poolhouse" # Use upper() on room: room_up room_up = room.upper() # Print out room and rosom_up print(room) print(room_up) # Print out the number of o's in room print(room.count('o'))
poolhouse
POOLHOUSE
3
List Methods
# Create list areas areas = [11.25, 18.0, 20.0, 10.75, 9.50] # Print out the index of the element 20.0 print(areas.index(20.0)) # Print out how often 14.5 appears in areas print(areas.count(14.5))
# Create list areas areas = [11.25, 18.0, 20.0, 10.75, 9.50] # Use append twice to add poolhouse and garage size areas.append(24.5) areas.append(15.45) # Print out areas print(areas) # Reverse the orders of the elements in areas areas.reverse() # Print out areas print(areas)