如何使用Python 實現秒錶功能?

m0_51713294發表於2020-12-02

其實python不是我們看到那麼複雜,如果打好紮實的基礎,我們可以用python做一些好玩的事情,比如實現秒錶功能,一起來看下把~
前言:
本文的重點是在python中使用Tkinter建立秒錶。

關於Tkinter:
Tkinter是Python的標準GUI庫。Python與Tkinter結合使用時,提供了一種建立GUI應用程式的快速而簡單的方法。Tkinter為Tk GUI工具包提供了一個強大的物件導向介面。Tkinter很容易入門,下面是一些示例程式碼,可以讓您在python中使用Tkinter。
語法:
# 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()
輸出:

使用Tkinter建立秒錶
現在讓我們嘗試使用Tkinter模組建立一個程式來建立秒錶。
所需模組:我們將僅使用tkinter來建立gui,並且此程式中將不使用其他任何庫。
# Python program to illustrate a stop watch
# using Tkinter


```java
#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() 

輸出:
在這裡插入圖片描述
在這裡插入圖片描述

好了,以上就是使用Python 實現秒錶功能的全部內容了,如需瞭解更多python實用知識,點選進入PyThon學習網教學中心。

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