"Python Programming Quick Start" 8.9.1 practical exercises

#!python3#运行 py mcb.pyw save spam ，剪贴板内容就关键字spam保存#py mcb.pyw spam 加载spam 对应内容到剪贴板#py mcb.pyw list 关键字列表到剪贴板#扩展多重剪贴板：#增加delete <keyword>，从shelf中删除相应键值#delete all 清空import sys,pyperclip,shelvemcbShelf=shelve.open(r‘I:\mcb‘)#save clipboasr content:if len(sys.argv) == 3: if sys.argv[1].lower()==‘save‘ and sys.argv[2].lower() != ‘all‘: mcbShelf[sys.argv[2]] = pyperclip.paste() elif sys.argv[1].lower()==‘delete‘ and sys.argv[2].lower()==‘all‘: mcbShelf.clear() elif sys.argv[1].lower()==‘delete‘ and sys.argv[2] in mcbShelf: del mcbShelf[sys.argv[2]] elif len(sys.argv) == 2: #List keywords and load content. if sys.argv[1]==‘list‘: pyperclip.copy(str(list(mcbShelf.keys()))) elif sys.argv[1] in mcbShelf: pyperclip.copy(mcbShelf[sys.argv[1]]) else: print("参数错误")else: print(‘wrong‘)mcbShelf.close()

"Python Programming Quick Start" 8.9.1 practical exercises