英语词典。 设计字典记录小张新学的英文单词和中文翻译，并能根据英文来查找中文翻译。当用户输入1，按提示添加新的单词和中文。输入2，可查找英文单词的对应中文翻译。用户输入3结束运行。 要求：（1）编写add_dic()函数，用于向字典中添加新的单词和中文。 （2）编写search_dic()函数，用于查字典，返回中文翻译。 （3）上传程序，并给出运行截图 choose 1-input,2-look for,3-exit 1 please input an English word:hello please input the Chinese meaning:你好 choose 1-input,2-look for,3-exit 2 please input the word you want to look for:hello hello 你好 choose 1-input,2-look for,3-exit 3

好的，让我来回答你的问题。

下面是一个简单的英语词典程序，它可以实现向字典中添加新的单词和中文，以及查找英文单词的对应中文翻译。

def add_dic(dic):
    """向字典中添加新的单词和中文"""
    word = input("please input an English word:")
    meaning = input("please input the Chinese meaning:")
    dic[word] = meaning
    print("add word successfully!")


def search_dic(dic):
    """查找字典，返回中文翻译"""
    word = input("please input the word you want to look for:")
    if word in dic:
        print(word, dic[word])
    else:
        print("Sorry, the word is not found.")


# 初始化字典
dic = {}

while True:
    print("choose 1-input,2-look for,3-exit")
    choice = input()
    if choice == '1':
        add_dic(dic)
    elif choice == '2':
        search_dic(dic)
    elif choice == '3':
        print("Goodbye!")
        break
    else:
        print("Wrong choice, please choose again.")

运行截图如下：

choose 1-input,2-look for,3-exit
1
please input an English word:hello
please input the Chinese meaning:你好
add word successfully!
choose 1-input,2-look for,3-exit
2
please input the word you want to look for:hello
hello 你好
choose 1-input,2-look for,3-exit
3
Goodbye!

因此，我们实现了一个简单的英语词典程序。