将嵌套哈希中的值注入字符串

# 定义一个嵌套哈希表
nested_hash = {
    'name': 'John',
    'age': 30,
    'address': {
        'street': '123 Main St',
        'city': 'New York',
        'country': 'USA'
    }
}

# 使用字符串插值将嵌套哈希中的值注入字符串
string_with_values = f"My name is {nested_hash['name']}, I am {nested_hash['age']} years old, and I live in {nested_hash['address']['city']}."
print(string_with_values)

# 使用字符串格式化将嵌套哈希中的值注入字符串
string_with_values = "My name is {}, I am {} years old, and I live in {}.".format(nested_hash['name'], nested_hash['age'], nested_hash['address']['city'])
print(string_with_values)

My name is John, I am 30 years old, and I live in New York.
My name is John, I am 30 years old, and I live in New York.