每次出现键时的python替换和循环字典值

# 创建字典
my_dict = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}

# 替换特定键的值
my_dict['key2'] = 'new_value2'

# 输出替换后的字典
print(my_dict)

{'key1': 'value1', 'key2': 'new_value2', 'key3': 'value3'}

# 创建字典
my_dict = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}

# 循环遍历字典中的值
for value in my_dict.values():
    print(value)

value1
value2
value3