Python 程序：從字典中刪除給定鍵

寫一個 Python 程序從字典中刪除給定的鍵，並給出一個實例。

從字典中刪除給定鍵的 Python 程序示例 1

在這個 python 程序中，我們使用 if 語句來檢查這個字典中是否存在這個鍵。在 If 中，有一個 del 函數可以從字典中刪除鍵值。

# Python Program to Remove Given Key from a Dictionary

myDict = {'name': 'John', 'age': 25, 'job': 'Developer'}
print("Dictionary Items  :  ",  myDict)

key = input("Please enter the key that you want to Delete : ")

if key in myDict:
    del myDict[key]
else:
    print("Given Key is Not in this Dictionary")

print("\nUpdated Dictionary = ", myDict)

從字典中刪除給定鍵的 Python 程序示例 2

這個 Python 程序是從字典中刪除鍵值的另一種方法。這裡，我們使用鍵功能在字典中查找一個鍵。

myDict = {'name': 'John', 'age': 25, 'job': 'Developer'}
print("Dictionary Items  :  ",  myDict)

key = input("Please enter the key that you want to Delete : ")

if key in myDict.keys():
    del myDict[key]
else:
    print("Given Key is Not in this Dictionary")

print("\nUpdated Dictionary = ", myDict)

刪除字典鍵輸出

Dictionary Items  :   {'name': 'John', 'age': 25, 'job': 'Developer'}
Please enter the key that you want to Delete : name

Updated Dictionary =  {'age': 25, 'job': 'Developer'}

從字典中刪除給定鍵的 Python 程序示例 3

在這個 python 程序中，我們使用 pop 函數從字典中移除密鑰。

myDict = {'name': 'John', 'age': 25, 'job': 'Developer'}
print("Dictionary Items  :  ",  myDict)

key = input("Please enter the key that you want to Delete : ")

if key in myDict.keys():
    print("Removed Item  :  ", myDict.pop(key))
else:
    print("Given Key is Not in this Dictionary")

print("\nUpdated Dictionary = ", myDict)

刪除字典鍵輸出

Dictionary Items  :   {'name': 'John', 'age': 25, 'job': 'Developer'}
Please enter the key that you want to Delete : age
Removed Item  :   25

Updated Dictionary =  {'name': 'John', 'job': 'Developer'}
>>> 
Dictionary Items  :   {'name': 'John', 'age': 25, 'job': 'Developer'}
Please enter the key that you want to Delete : sal
Given Key is Not in this Dictionary

Updated Dictionary =  {'name': 'John', 'age': 25, 'job': 'Developer'}
>>>