删除Python

my_var = "Hello, geek-docs.com"
print(my_var)

del my_var

# 尝试访问已删除的变量会报错
print(my_var)

Hello, geek-docs.com
Traceback (most recent call last):
  File "test.py", line 6, in <module>
    print(my_var)
NameError: name 'my_var' is not defined

my_list = ["geek-docs.com", "Python", "is", "awesome"]
print(my_list)

# 删除指定元素
my_list.remove("is")
print(my_list)

# 删除指定索引处的元素
popped_element = my_list.pop(1)
print(my_list)
print("Popped element:", popped_element)

# 使用del删除指定索引处的元素
del my_list[0]
print(my_list)

['geek-docs.com', 'Python', 'is', 'awesome']
['geek-docs.com', 'Python', 'awesome']
['geek-docs.com', 'awesome']
Popped element: Python
['awesome']

my_dict = {"website": "geek-docs.com", "language": "Python", "topic": "tutorials"}
print(my_dict)

# 删除指定键值对
my_dict.pop("language")
print(my_dict)

# 使用del删除指定键值对
del my_dict["topic"]
print(my_dict)

{'website': 'geek-docs.com', 'language': 'Python', 'topic': 'tutorials'}
{'website': 'geek-docs.com', 'topic': 'tutorials'}
{'website': 'geek-docs.com'}

import os

# 创建一个空文件
with open("test.txt", "w") as file:
    file.write("Hello, geek-docs.com")

# 删除文件
os.remove("test.txt")