1.描述：

enumerate()函式用於將一個可遍歷的資料物件(如列表，元組，字串)組合為一個索引序列，同時列出資料和資料索引(下標)，一般用於for迴圈當中

2.語法

enumerate(sequence,[start=0])

3.引數：

• sequence：一個序列，迭代器或其他支援迭代物件
• start：可選引數，下標起始位置，預設從索引0開始

4.返回值

返回enumerate(列舉)物件

5.例項

list1 = [10,20,30,40,"maple","yf",60]

tup1 = (100,200,300,400,"hao","qazert",600)

str1 = "1234qwertjdsa22323"

for index1,item1 in enumerate(list1):
  print("index1 = %d,item1 = %s" %(index1,item1,))

print("------------------------------")
for index2,item2 in enumerate(list1,start = 2):
  print("index2 = %d,item2 = %s" %(index2,item2,))

print("******************************")
for index3,item3 in enumerate(tup1):
  print("index3 = %d,item3 = %s" % (index3,item3,))

print("==============================")
for index4,item4 in enumerate(tup1,start = 4):
  print("index4 = %d,item4 = %s" % (index4,item4,))

print("%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%")
for index5,item5 in enumerate(str1):
  print("index4 = %d,item4 = %s" % (index5,item5,))

print("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$")
for index6,item6 in enumerate(str1,start = 6):
  print("index4 = %d,item4 = %s" % (index6,item6,))
  
#輸出的結果如下：
index1 = 0,item1 = 10
index1 = 1,item1 = 20
index1 = 2,item1 = 30
index1 = 3,item1 = 40
index1 = 4,item1 = maple
index1 = 5,item1 = yf
index1 = 6,item1 = 60
------------------------------
index2 = 2,item2 = 10
index2 = 3,item2 = 20
index2 = 4,item2 = 30
index2 = 5,item2 = 40
index2 = 6,item2 = maple
index2 = 7,item2 = yf
index2 = 8,item2 = 60
******************************
index3 = 0,item3 = 100
index3 = 1,item3 = 200
index3 = 2,item3 = 300
index3 = 3,item3 = 400
index3 = 4,item3 = hao
index3 = 5,item3 = qazert
index3 = 6,item3 = 600
==============================
index4 = 4,item4 = 100
index4 = 5,item4 = 200
index4 = 6,item4 = 300
index4 = 7,item4 = 400
index4 = 8,item4 = hao
index4 = 9,item4 = qazert
index4 = 10,item4 = 600
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
index4 = 0,item4 = 1
index4 = 1,item4 = 2
index4 = 2,item4 = 3
index4 = 3,item4 = 4
index4 = 4,item4 = q
index4 = 5,item4 = w
index4 = 6,item4 = e
index4 = 7,item4 = r
index4 = 8,item4 = t
index4 = 9,item4 = j
index4 = 10,item4 = d
index4 = 11,item4 = s
index4 = 12,item4 = a
index4 = 13,item4 = 2
index4 = 14,item4 = 2
index4 = 15,item4 = 3
index4 = 16,item4 = 2
index4 = 17,item4 = 3
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
index4 = 6,item4 = 1
index4 = 7,item4 = 2
index4 = 8,item4 = 3
index4 = 9,item4 = 4
index4 = 10,item4 = q
index4 = 11,item4 = w
index4 = 12,item4 = e
index4 = 13,item4 = r
index4 = 14,item4 = t
index4 = 15,item4 = j
index4 = 16,item4 = d
index4 = 17,item4 = s
index4 = 18,item4 = a
index4 = 19,item4 = 2
index4 = 20,item4 = 2
index4 = 21,item4 = 3
index4 = 22,item4 = 2
index4 = 23,item4 = 3

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。