類方法實現：用python實現一個簡單的單詞本，添加/查找/刪除單詞。

1.實現一個簡單的單詞本，功能：

①添加單詞，當所添加的單詞已存在時，讓用戶知道

②查找單詞，當查找的單詞不存在時，讓用戶知道

③刪除單詞，當刪除的單詞不存在時，讓用戶知道

以上功能可以無限次操作，直到用戶輸入bye退出程序

#如何接收輸入的help項
#coding:utf-8
help='''
    1.add a word
    2.find a word
    3.delete a word
    input bye to exit
    '''
print (help)
import sys
wordbook=[]
while(1):
    command=input("please input your command:")
    if command=="1":
        word=(input("please input your the word you want to add:")).strip()
        if word not in wordbook:
            wordbook.append(word)
        print ("the word already exists")
    if command=="2":
        word=(input("please input your the word you want to find:")).strip()
        for i in wordbook:
               if i==word:
                print ("find it")
            print ("words do not exist.")
    if command=="3":
        word=(input("please input your the word you want to delete:")).strip()
        for i in wordbook:
            if i==word:
                wordbook.remove(i)
                print ("Word deleted")
            print ("words do not exist.")
    if command=="bye":
        sys.exit()

 

2.升級版，單詞本類型為字典，用封裝函數的方法來實現

#如何接收輸入的help項
#coding:utf-8
def addword():
    word=(input("請輸入你要添加的單詞:")).strip()
    if word in wordbook.keys():
        print ("the word already exists")
    else:
        word_meaning=input("請輸入單詞的含義:")
        wordbook[word]=word_meaning
        print ("單詞添加成功")
    print ("最新的單詞本為:",wordbook)
def findword():
    word=(input("請輸入你要查找的單詞:")).strip()
    if word in wordbook.keys():
        print ("您查找的單詞已存在,單詞的含義是:",wordbook[word])
    else:
        print ("沒有該單詞")
def deleteword():
    word=(input("please input your the word you want to delete:")).strip()
    if word in wordbook.keys():
        del wordbook[word]
        print ("單詞刪除成功")
    else:
        print ("沒有該單詞")
    print ("最新的單詞本為:",wordbook)

help='''
    1.add a word
    2.find a word
    3.delete a word
    input bye to exit
    '''
print (help)
import sys
wordbook={}

while(1):
    command=input("please input your command:")
    if command=="1":
        addword()
    if command=="2":
        findword()
    if command=="3":
        deleteword()
    if command=="bye":
        sys.exit()