python制作簡易電腦
- 前言
- 開始
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- 獻上代碼:
- 代碼剖析
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- 庫的導入和魔法注釋
- 頁面的初始化(第一部分)
- 運算函數
- 運算接口
- 頁面的初始化(第二部分)
- 頁面主循環
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- 效果![效果](https://img-blog.csdnimg.cn/2020091819324538.jpg#pic_center)
- 代碼github
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- 作者
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前言
項目傳送門
開始
獻上代碼:
# calculator.py
# magic remark
# -*- encoding:utf-8 -*-
try:
import math
except:
print('please install math lib')
print('use `pip install math` to do it')
print('and use `python -c "import math"` to double-check it')
try:
import tkinter as tk
import tkinter.messagebox as msg
except:
import Tkinter as tk
import tkMessageBox as msg
base = tk.Tk()
n = 0
keys = ['+/-','x+y','x-y','x*y','x/y','x!','x√y','log x(y)','x^y']
tk.Label(base,text='x:').grid(column = 0,row = 0)
tk.Label(base,text='y:').grid(column = 2,row = 0)
x = tk.StringVar()
y = tk.StringVar()
entry_x = tk.Entry(base,textvariable=x)
entry_y = tk.Entry(base,textvariable=y)
entry_x.grid(column = 1,row = 0)
entry_y.grid(column = 3,row = 0)
def factorial(x):
res = 1
for i in range(1,x + 1):
res *= i
return res
root = lambda x,y:pow(x,y / 1)
log = math.log
def cal(op):
global x,y
_x = x.get()
_y = y.get()
if(op in ['+/-','x!','x√y','log x(y)','x^y']):
if(op == '+/-'):
op = '-x'
elif(op == 'x!'):
op = 'factorial(x)'
elif(op == 'x√y'):
op = 'root(x,y)'
elif(op == 'log x(y)'):
op = 'log(x,y)'
elif(op == 'x^y'):
op = 'x**y'
op = op.replace('x',_x)
op = op.replace('y',_y)
try:
_x = eval(op)
x.set(str(_x))
y.set('')
except:
msg.showerror('expression error','expression error')
tk.Button(base,text = '+/-',command = lambda:cal('+/-')).grid(column = 0,row = 1)
tk.Button(base,text = 'x+y',command = lambda:cal('x+y')).grid(column = 1,row = 1)
tk.Button(base,text = 'x-y',command = lambda:cal('x-y')).grid(column = 2,row = 1)
tk.Button(base,text = 'x*y',command = lambda:cal('x*y')).grid(column = 3,row = 1)
tk.Button(base,text = 'x/y',command = lambda:cal('x/y')).grid(column = 4,row = 1)
tk.Button(base,text = 'x!',command = lambda:cal('x!')).grid(column = 5,row = 1)
tk.Button(base,text = 'x√y',command = lambda:cal('x√y')).grid(column = 6,row = 1)
tk.Button(base,text = 'log x(y)',command = lambda:cal('log x(y)')).grid(column = 7,row = 1)
tk.Button(base,text = 'x^y',command = lambda:cal('x^y')).grid(column = 8,row = 1)
tk.mainloop()
代碼剖析
庫的導入和魔法注釋
# calculator.py
# magic remark
# -*- encoding:utf-8 -*-
try:
import math
except:
print('please install math lib')
print('use `pip install math` to do it')
print('and use `python -c "import math"` to double-check it')
try:
import tkinter as tk
import tkinter.messagebox as msg
except:
import Tkinter as tk
import tkMessageBox as msg
頁面的初始化(第一部分)
base = tk.Tk()
n = 0
keys = ['+/-','x+y','x-y','x*y','x/y','x!','x√y','log x(y)','x^y']
tk.Label(base,text='x:').grid(column = 0,row = 0)
tk.Label(base,text='y:').grid(column = 2,row = 0)
x = tk.StringVar()
y = tk.StringVar()
entry_x = tk.Entry(base,textvariable=x)
entry_y = tk.Entry(base,textvariable=y)
entry_x.grid(column = 1,row = 0)
entry_y.grid(column = 3,row = 0)
運算函數
def factorial(x):
res = 1
for i in range(1,x + 1):
res *= i
return res
root = lambda x,y:pow(x,y / 1)
log = math.log
運算接口
def cal(op):
global x,y
_x = x.get()
_y = y.get()
if(op in ['+/-','x!','x√y','log x(y)','x^y']):
if(op == '+/-'):
op = '-x'
elif(op == 'x!'):
op = 'factorial(x)'
elif(op == 'x√y'):
op = 'root(x,y)'
elif(op == 'log x(y)'):
op = 'log(x,y)'
elif(op == 'x^y'):
op = 'x**y'
op = op.replace('x',_x)
op = op.replace('y',_y)
try:
_x = eval(op)
x.set(str(_x))
y.set('')
except:
msg.showerror('expression error','expression error')
頁面的初始化(第二部分)
tk.Button(base,text = '+/-',command = lambda:cal('+/-')).grid(column = 0,row = 1)
tk.Button(base,text = 'x+y',command = lambda:cal('x+y')).grid(column = 1,row = 1)
tk.Button(base,text = 'x-y',command = lambda:cal('x-y')).grid(column = 2,row = 1)
tk.Button(base,text = 'x*y',command = lambda:cal('x*y')).grid(column = 3,row = 1)
tk.Button(base,text = 'x/y',command = lambda:cal('x/y')).grid(column = 4,row = 1)
tk.Button(base,text = 'x!',command = lambda:cal('x!')).grid(column = 5,row = 1)
tk.Button(base,text = 'x√y',command = lambda:cal('x√y')).grid(column = 6,row = 1)
tk.Button(base,text = 'log x(y)',command = lambda:cal('log x(y)')).grid(column = 7,row = 1)
tk.Button(base,text = 'x^y',command = lambda:cal('x^y')).grid(column = 8,row = 1)
頁面主循環
效果
python制作簡易電腦前言開始
![](https://img.laitimes.com/img/__Qf2AjLwojIjJCLyojI0JCLiIXZ05WZj91YpB3InBnaugzM1QjMzkTM4ETOwAjMwIzLc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.jpg)
代碼github
代碼github
作者
hit-road
拜拜,下課!
hit-road不定期跟新,不見不散!