Python - 最小值键分配

给定两个字典，任务是编写一个Python程序，为两个字典中的匹配键分配最小值。

例子：

Input : test_dict1 = {“gfg” : 1, “is” : 7, “best” : 8}, test_dict2 = {“gfg” : 2, “is” : 2, “best” : 10}

Output : {“gfg” : 1, “is” : 2, “best” : 8}

Explanation : Minimum of 1 and 2 is 1, hence, gfg is assigned with 1 and so on.

Input : test_dict1 = {“gfg” : 1, “is” : 7, “best” : 12}, test_dict2 = {“gfg” : 2, “is” : 2, “best” : 10}

Output : {“gfg” : 1, “is” : 2, “best” : 10}

Explanation : Minimum of 10 and 12 is 10, hence, best is assigned with 10 and so on.

编程需要懂一点英语

方法 #1：使用字典理解+ min() + items()

在这种情况下，使用 min() 提取最少的键值。字典理解用于重建具有修改值的字典。

Python3

# Python3 code to demonstrate working of
# Minimum value key assignment
# Using dictionary comprehension + min() + items()
  
# initializing dictionaries
test_dict1 = {"gfg": 1, "is": 7, "best": 8}
test_dict2 = {"gfg": 2, "is": 2, "best": 10}
  
# printing original dictionaries
print("The original dictionary 1 is : " + str(test_dict1))
print("The original dictionary 2 is : " + str(test_dict2))
  
# using min() to assign min values
res = {key: min(val, test_dict2[key]) for key, val in test_dict1.items()}
  
# printing result
print("The minimum value keys : " + str(res))

Python3

# Python3 code to demonstrate working of
# Minimum value key assignment
# Using dict() + min() + zip()
  
# initializing dictionaries
test_dict1 = {"gfg": 1, "is": 7, "best": 8}
test_dict2 = {"gfg": 2, "is": 2, "best": 10}
  
# printing original dictionaries
print("The original dictionary 1 is : " + str(test_dict1))
print("The original dictionary 2 is : " + str(test_dict2))
  
# using min() to assign min values
# dict() for conversion of result to dictionary
res = dict([min(i, j) for i, j in zip(test_dict1.items(), test_dict2.items())])
  
# printing result
print("The minimum value keys : " + str(res))

输出：

The original dictionary 1 is : {'gfg': 1, 'is': 7, 'best': 8}
The original dictionary 2 is : {'gfg': 2, 'is': 2, 'best': 10}
The minimum value keys : {'gfg': 1, 'is': 2, 'best': 8}

方法 #2：使用dict() + min() + zip()

在这里，为了更好的比较， zip()用于获取要比较的值， min()用于获取键的最小值。然后dict()用于将结果转换为字典。

蟒蛇3

# Python3 code to demonstrate working of
# Minimum value key assignment
# Using dict() + min() + zip()
  
# initializing dictionaries
test_dict1 = {"gfg": 1, "is": 7, "best": 8}
test_dict2 = {"gfg": 2, "is": 2, "best": 10}
  
# printing original dictionaries
print("The original dictionary 1 is : " + str(test_dict1))
print("The original dictionary 2 is : " + str(test_dict2))
  
# using min() to assign min values
# dict() for conversion of result to dictionary
res = dict([min(i, j) for i, j in zip(test_dict1.items(), test_dict2.items())])
  
# printing result
print("The minimum value keys : " + str(res))

输出：

The original dictionary 1 is : {'gfg': 1, 'is': 7, 'best': 8}
The original dictionary 2 is : {'gfg': 2, 'is': 2, 'best': 10}
The minimum value keys : {'gfg': 1, 'is': 2, 'best': 8}