python陣列

Python有一套內建方法(built-in methods).

Method	Description
append()	Adds an element at the end of the list
clear()	Removes all the elements from the list
copy()	Returns a copy of the list
count()	Returns the number of elements with the specified value
extend()	Add the elements of a list (or any iterable), to the end of the current list
index()	Returns the index of the first element with the specified value
insert()	Adds an element at the specified position
pop()	Removes the element at the specified position
remove()	Removes the first item with the specified value
reverse()	Reverses the order of the list
sort()	Sorts the list

陣列截圖

陣列程式碼

fruits = ['a', 'b', 'c'] #台灣市場價值最高的三公司

for x in fruits:        # 

   print ("字母: %s" % x)

print(fruits)

fruits.append("")

print("使用append")

print(fruits)

fruits.clear()

print("使用clear")

print(fruits)

fruits = ['a', 'b', 'c', 'd']

chicken = fruits.copy()

#和 chicken = fruits 有何不同?

print(chicken)

fruits.append("d")

print(fruits.count("d"))

print(fruits.count("a"))

for x in fruits:

  print(x) 

  if x == "d": #判斷式是否banana

    print('I hate d.')

  if x == "c": #判斷式是否cherry

    print('I like cherry.')

  if x == "b": #判斷式是否apple

    print('You are my sweet apple.')