Python如何使用tkinter编写GUI程序

@(Python3中tkinter写的HTTP测试工具代码支持正则表达式和XPATH)

程序非常简单，暂时只支持GET方法，使用内置库tkinter编写GUI窗口，在Mac下运行效果图如下，windows运行需要更改控件宽度高度等控制参数才能很好的显示。

效果图（使用XPATH匹配房天下网站）

代码如下，需要安装requests和lxml第三方库

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importtkinterastk
fromtkinterimportscrolledtext
fromtkinterimportmessagebox
importre
importrequests
fromlxmlimportetree
classApplication(tk.Frame):
def__init__(self,master=None):
super().__init__(master)
self.master=master
self.pack()
self.create_widgets()
defcreate_widgets(self):
#bar
self.canvas=tk.Canvas(self,width=980,height=65,bg='#ebf4ec')
self.image_file=tk.PhotoImage(file='network.png')
self.imag=self.canvas.create_image(50,0,anchor='n',image=self.image_file)
self.canvas.create_text(480,35,text='HTTP测试工具',font=('Arial',35),)
self.canvas.grid(row=0,columnspan=3)
#methodHTTP方法多选框
self.var_method=tk.StringVar(self)
self.var_method.set('GET')
self.optionmenu=tk.OptionMenu(self,self.var_method,'GET','POST','PUT','PATCH','DELETE','HEAD','OPTIONS')
.grid(row=1,column=0,padx=2,pady=2,ipadx=10,ipady=5)
#url
self.var_url=tk.StringVar(self)
self.var_url.set('http://')
self.url_entry=tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_url).grid(row=1,column=1,
padx=1,pady=2,ipadx=10,ipady=5)
#requestbutton
self.request_button=tk.Button(self,text='发送请求',fg='#436EEE',command=self.request).grid(row=1,
column=2,padx=2,pady=2,ipadx=10,ipady=5)
#requestheader
self.header_label=tk.Label(self,text='请求头：').grid(row=3,column=0,padx=2,pady=2,ipadx=10,ipady=5)
self.var_header=tk.StringVar(self)
self.var_header.set('Mozilla/5.0(Macintosh;IntelMacOSX10.12;rv:64.0)Gecko/20100101Firefox/64.0')
self.header_entry=tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_header).grid(row=3,
column=1,padx=2,pady=2,ipadx=10,ipady=5)
#regularexpression
self.re_header=tk.Label(self,text='正则表达式：').grid(row=4,column=0,padx=2,pady=2,ipadx=10,ipady=5)
self.var_re=tk.StringVar(self)
self.re_entry=tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_re).grid(row=4,column=1,
padx=2,pady=2,ipadx=10,ipady=5)
self.re_button=tk.Button(self,text='匹配全部',command=self.re_request).grid(row=4,column=2,padx=2,
pady=2,ipadx=10,ipady=5)
#xpath
self.xpath_label=tk.Label(self,text='Xpath表达式：').grid(row=5,column=0,padx=2,pady=2,ipadx=10,ipady=5)
self.var_xpath=tk.StringVar(self)
self.xpath_entry=tk.Entry(self,font=('Arial',14),width=82,textvariable=self.var_xpath).grid(row=5,
column=1,padx=2,pady=2,ipadx=10,ipady=5)
self.xpath_button=tk.Button(self,text='匹配全部',command=self.xpath_request).grid(row=5,column=2,padx=2,
pady=2,ipadx=10,ipady=5)
#information
self.var_status=tk.StringVar()
self.var_status.set('当前状态：未请求')
self.information=tk.Label(self,textvariable=self.var_status,bg='#48D1CC',font=('Arial',14)).grid(row=6,
column=1,padx=2,pady=2,ipadx=10,ipady=5)
#results
self.textarea=tk.scrolledtext.ScrolledText(self,width=117,height=25,bg='black',fg='#00EE00',
font=('Arial',14))
self.textarea.grid(row=7,columnspan=3,pady=10)
#xpath匹配
defxpath_request(self):
xpath=self.var_xpath.get()
ifxpath=='':
messagebox.showinfo('警告',message='请输入XPATH表达式！')
else:
url=self.var_url.get()
header=self.var_header.get()
headers={'User-Agent':header}
data=requests.get(url=url,headers=headers).text
results=etree.HTML(data).xpath(xpath)
self.textarea.delete('1.0','end')
foriinresults:
self.textarea.insert('end',i.text+'\n')
#正则表达式匹配
defre_request(self):
exp=self.var_re.get()
ifexp=='':
messagebox.showinfo('警告',message='请输入正则表达式！')
else:
url=self.var_url.get()
header=self.var_header.get()
headers={'User-Agent':header}
data=requests.get(url=url,headers=headers).text
results=re.compile(exp).findall(data)
self.textarea.delete('1.0','end')
self.textarea.insert('end',results)
defrequest(self):
method=self.var_method.get()
ifmethod=='GET':
self.get_request()
elifmethod=='POST':
self.post_request()
defpost_request(self):
pass
#还没写
#发送HTTPGET请求
defget_request(self):
self.textarea.delete('1.0','end')
ifself.var_header.get()=='':
headers={'User-Agent':''}
else:
headers={'User-Agent':self.var_header.get()}
url=self.var_url.get()
data=requests.get(url=url,headers=headers)
if(data.status_code==200):
self.var_status.set('当前状态：'+'GET'+url+''+str(data.status_code)+'OK')
elif(data.status_code==404):
self.var_status.set('当前状态：'+str(data.status_code)+'Notfound')
else:
self.var_status.set('当前状态：'+str(data.status_code))
content=data.text
self.textarea.insert('end',content)
if__name__=='__main__':
root=tk.Tk()
root.title('KKHTTP测试工具')
root.geometry('980x700')
app=Application(master=root)
app.mainloop()