list[s]
是一个字符串.为什么这不起作用?
list[s]
is a string. Why doesn't this work?
出现如下错误:
TypeError:列表索引必须是整数,而不是 str
TypeError: list indices must be integers, not str
list = ['abc', 'def']
map_list = []
for s in list:
t = (list[s], 1)
map_list.append(t)
list1 = ['abc', 'def']
list2=[]
for t in list1:
for h in t:
list2.append(h)
map_list = []
for x,y in enumerate(list2):
map_list.append(x)
print (map_list)
输出:
>>>
[0, 1, 2, 3, 4, 5]
>>>
这正是你想要的.
如果你不想到达每个元素,那么:
If you dont want to reach each element then:
list1 = ['abc', 'def']
map_list=[]
for x,y in enumerate(list1):
map_list.append(x)
print (map_list)
输出:
>>>
[0, 1]
>>>
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