Question

我有一个嵌套的字典：

public final class R {
    public static final class layout{
        public static final int main_activity=0x7f0a0000;
        public static final int login_activity=0x7f0a0001;
    }
    public static final class drawable{
        public static final int ic_add=0x7f0a0000;
        public static final int ic_edit=0x7f0a0001;
    }
    public static final class mimap{
        public static final int ic_launcher=0x7f0b0000;
    }

    public static final class raw {
        public static final int sound=0x7f0b0000;
    }
}

在每本词典中，我都有一个 key1 和一个 premium_due_amount 。

由于在第一个字典中已经设置了 key1 ，所以我想将除第一个以外的所有其他 premium_due_amount 的值更改为0。

预期产量

nested_dict = { 
               19376: {
                      'key1': 'SAL/2018/4207', 
                      'premium_due_amount': 1162239.98,
                      }, 
               19377: {'key1': 'SAL/2018/4207', 
                       'premium_due_amount': 1162239.98,
                      }, 
               19378: {
                       'key1': 'SAL/2018/4207', 
                       'premium_due_amount': 1162239.98,
                      } 
              }

当前解决方案：

nested_dict = { 
               19376: {
                      'key1': 'SAL/2018/4207', 
                      'premium_due_amount': 1162239.98,
                      }, 
               19377: {'key1': 'SAL/2018/4207', 
                       'premium_due_amount': 0,
                      }, 
               19378: {
                       'key1': 'SAL/2018/4207', 
                       'premium_due_amount': 0,
                      } 
              }

请提出一种更简化且更Python化的方法。

Answer 1

IIUC，您希望将除最小键以外的所有值设置为0。这应该适用于任何python3.x，因为dict.keys()返回了一个set- like 对象，您可以对其执行set操作。

for k in nested_dict.keys() - {min(nested_dict)}:
     nested_dict[k]['premium_due_amount'] = 0

print (nested_dict)

{19376: {'key1': 'SAL/2018/4207', 'premium_due_amount': 1162239.98},
 19377: {'key1': 'SAL/2018/4207', 'premium_due_amount': 0},
 19378: {'key1': 'SAL/2018/4207', 'premium_due_amount': 0}}

将键的所有其他值设置为0（第一个值除外）的Python方法

1 个答案: