其实python不是我们看到那么复杂,如果打好扎实的基础,我们可以用python做一些好玩的事情,比如实现秒表功能,一起来看下吧~
前言:
本文的重点是在python中使用Tkinter创建秒表。
关于Tkinter:
Tkinter是Python的标准GUI库。Python与Tkinter结合使用时,提供了一种创建GUI应用程序的快速而简单的方法。Tkinter为Tk GUI工具包提供了一个强大的面向对象接口。Tkinter很容易入门,下面是一些示例代码,可以让您在python中使用Tkinter。
语法:
# Python program to create a # a new window using Tkinter # importing the required libraires import tkinter # creating a object 'top' as instance of class Tk top = tkinter.Tk() # This will start the blank window top.mainloop()
输出:
使用Tkinter创建秒表
现在让我们尝试使用Tkinter模块创建一个程序来创建秒表。
所需模块:我们将仅使用tkinter来创建gui,并且此程序中将不使用其他任何库。
# Python program to illustrate a stop watch # using Tkinter #importing the required libraries import tkinter as Tkinter counter = -1 running = False def counter_label(label): def count(): if running: global counter # To manage the intial delay. if counter==-1: display="Starting..." else: display=str(counter) label['text']=display # Or label.config(text=display) # label.after(arg1, arg2) delays by # first argument given in milliseconds # and then calls the function given as second argument. # Generally like here we need to call the # function in which it is present repeatedly. # Delays by 1000ms=1 seconds and call count again. label.after(1000, count) counter += 1 # Triggering the start of the counter. count() # start function of the stopwatch def Start(label): global running running=True counter_label(label) start['state']='disabled' stop['state']='normal' reset['state']='normal' # Stop function of the stopwatch def Stop(): global running start['state']='normal' stop['state']='disabled' reset['state']='normal' running = False # Reset function of the stopwatch def Reset(label): global counter counter=-1 # If rest is pressed after pressing stop. if running==False: reset['state']='disabled' label['text']='Welcome!' # If reset is pressed while the stopwatch is running. else: label['text']='Starting...' root = Tkinter.Tk() root.title("Stopwatch") # Fixing the window size. root.minsize(width=250, height=70) label = Tkinter.Label(root, text="Welcome!", fg="black", font="Verdana 30 bold") label.pack() start = Tkinter.Button(root, text='Start', width=15, command=lambda:Start(label)) stop = Tkinter.Button(root, text='Stop', width=15, state='disabled', command=Stop) reset = Tkinter.Button(root, text='Reset', width=15, state='disabled', command=lambda:Reset(label)) start.pack() stop.pack() reset.pack() root.mainloop()
输出:
好了,以上就是使用Python 实现秒表功能的全部内容了。
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