python统计字典中的最大最小值
时间: 2023-12-02 12:01:46 浏览: 45
可以使用Python内置的max()和min()函数。示例代码如下:
```python
my_dict = {'apple': 5, 'banana': 2, 'grape': 10, 'orange': 3}
max_value = max(my_dict.values())
max_key = [k for k, v in my_dict.items() if v == max_value][0]
min_value = min(my_dict.values())
min_key = [k for k, v in my_dict.items() if v == min_value][0]
print(f"The maximum value in the dictionary is {max_value}, associated with the key '{max_key}'")
print(f"The minimum value in the dictionary is {min_value}, associated with the key '{min_key}'")
```
输出:
```
The maximum value in the dictionary is 10, associated with the key 'grape'
The minimum value in the dictionary is 2, associated with the key 'banana'
```
相关问题
python字典求最大值
要在Python字典中求最大值,可以使用两种方法。第一种方法是使用sorted()函数,将字典的items()方法作为参数,并指定key=lambda x:x来按值进行排序。通过sorted()函数返回的列表的最后一个元素即为最大值的键值对。
代码示例:
dict_ = {"f":6,"a":1,"b":2,"c":3,"h":8,"d":0,'e':5,"g":7}
sorted_dict = sorted(dict_.items(), key=lambda x: x)
max_item = sorted_dict[-1]
print(max_item)
另一种方法是遍历字典的键值对,用一个变量来记录当前最大值,通过比较每个键值对的值与当前最大值,更新最大值和最大值的键值对。
代码示例:
dict_ = {"f":6,"a":1,"b":2,"c":3,"h":8,"d":0,'e':5,"g":7}
max_val = 0
max_item = ()
for key, val in dict_.items():
if val > max_val:
max_val = val
max_item = (key, val)
print(max_item)
相关问题:
1. 如何在Python字典中求最小值?
2. 如何在Python字典中找到值最大的键?
3.
python 怎么得到列表最小值
可以使用内置函数 `min()` 来获取列表中的最小值,例如:
```python
my_list = [3, 6, 1, 8, 2]
min_value = min(my_list)
print(min_value) # 输出 1
```
另外,如果列表中的元素是字符串类型,也可以通过 `min()` 函数获取按照字典序排序后的最小值,例如:
```python
my_list = ['apple', 'orange', 'banana']
min_value = min(my_list)
print(min_value) # 输出 'apple'
```