python 之 enumerate 高级用法

li = ["laodan", "zhaoda", "wanger", "zhangsan", "lisi", "wangwu"]

for index,value in enumerate(li):
    print(index, value)

0 laodan
1 zhaoda
2 wanger
3 zhangsan
4 lisi
5 wangwu

li = ["laodan", "zhaoda", "wanger", "zhangsan", "lisi", "wangwu"]

for index, value in enumerate(li, start=10):
    print(index, value)
    	
10 laodan
11 zhaoda
12 wanger
13 zhangsan
14 lisi
15 wangwu

print(list(enumerate(li)))

[(0, 'laodan'), (1, 'zhaoda'), (2, 'wanger'), (3, 'zhangsan'), (4, 'lisi'), (5, 'wangwu')]

print(dict(enumerate(li)))

{0: 'laodan', 1: 'zhaoda', 2: 'wanger', 3: 'zhangsan', 4: 'lisi', 5: 'wangwu'}