Python笔记 #04# Methods

源：DataCamp

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Methods 

String Methods

List Methods

 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)