Question

int

我想将'min_time'分配给min_time，'filtered_thresholds'分配给filtered_thresholds_expert，将'filtered_screens'分配给filtered_screens。
但是我得到了这个错误

min_time = j ['min_time']
TypeError：字符串索引必须是整数，而不是str

Answer 1

你不需要那里的嵌套循环。您最终会迭代内部词典的键，所以当您到达错误行时，j只是字符串'min_time'而不是字典条目。我已经修改了你的代码，所以它不会在你的密钥中混合使用空格和下划线。看看这是否适合你。

grammar = {
'expert' : {
'min_time' : 30,
'filtered_thresholds' : {'A':10,'B':10,'C':10,'D':10,'E':20,'I':10,'T':10,'H':10,'K':0,'J':0,'L':0,'M':0,'N':0,'O':0,'P':0,'Q':0,'R':0,'S':0},
'filter_screens' : ['H','I','J','K','L','M','N','O','P','Q','R','S']
},

'expert2' : {
'min_time' : 2,
'filtered_thresholds' : {'A':10,'B':10,'C':10,'D':10,'E':20,'I':10,'T':10,'H':10,'K':0,'J':0,'L':0,'M':0,'N':0,'O':0,'P':0,'Q':0,'R':0,'S':0},
'filter_screens' : ['H','I','J','K','L','M','N','O','P','Q','R','S']
 } 
}
for i in grammar:
    j = grammar[i]
    min_time = j['min_time']
    filtered_thresholds_expert = j['filtered_thresholds']
    filtered_screens = j['filter_screens']
    ProcessThresholds(time_per_screen_percentage)

Answer 2

你不需要内循环。

for i in grammar:
    j = grammar[i]
    min_time = j['min_time']
    filtered_thresholds_expert = j['filtered_thresholds']
    filtered_screens = j['filtered_screens']
    ProcessThresholds(time_per_screen_percentage)

你可以进一步完善它

for key, j in grammar.iteritems():
    ...

Answer 3

你有几个问题：

首先，没有明显的原因grammar是一个字典：你迭代它但从不用键索引它，所以它可能是一个列表。其次，你只需要一个循环。试试这个：

grammar = [
{
'min_time' : 30,
'filtered_thresholds' : {'A':10,'B':10,'C':10,'D':10,'E':20,'I':10,'T':10,'H':10,'K':0,'J':0,'L':0,'M':0,'N':0,'O':0,'P':0,'Q':0,'R':0,'S':0},
'filter_screens' : ['H','I','J','K','L','M','N','O','P','Q','R','S']
},

{
'min_time' : 2,
'filtered thresholds' : {'A':10,'B':10,'C':10,'D':10,'E':20,'I':10,'T':10,'H':10,'K':0,'J':0,'L':0,'M':0,'N':0,'O':0,'P':0,'Q':0,'R':0,'S':0},
'filter screens' : ['H','I','J','K','L','M','N','O','P','Q','R','S']
 } 
]

for i in grammar:
    min_time = i['min_time']
    filtered_thresholds_expert = i['filtered_thresholds']
    filtered_screens = i['filter_screens']
    ProcessThresholds(time_per_screen_percentage)

将字典键的值分配给另一个变量

3 个答案: