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| import tkinter as tk
from tkinter import messagebox
from tkinter import ttk
import matplotlib
import matplotlib.pyplot as plt
import numpy
import numpy as np
class Application(tk.Frame):
def __init__(self,root):
super().__init__(root)
matplotlib.use('qt5agg')
self.master = root
self.select = tk.StringVar()
self.one_k = tk.StringVar()
self.one_b = tk.StringVar()
self.two_a = tk.StringVar()
self.two_b = tk.StringVar()
self.two_c = tk.StringVar()
self.str_para = tk.StringVar()
self.pack()
self.envar= tk.StringVar(None,"123")
root.geometry('500x400')
root.title("画图")
self.int_window()
def Buttonclick(self):
self.select.set(self.selector.get())
print(self.select.get())
if self.select.get() == "一元函数":
print("一元函数绘图")
one_k = self.one_k.get()
one_b = self.one_b.get()
if len(one_k)==0 or len(one_b)==0:
messagebox.showinfo("提示"," 请输入正确信息")
return
x = np.linspace(-1 ,1 , 50)
y= int(one_k) * x +int(one_b)
plt.plot(x,y)
plt.show()
return
if self.select.get() == "二元函数":
print("二元函数绘图")
two_a = self.two_a.get()
two_b = self.two_b.get()
two_c = self.two_c.get()
if len(two_a)==0 or len(two_b)==0 or len(two_c)==0:
messagebox.showinfo("提示"," 请输入正确信息")
return
x = np.linspace(-1 ,1 , 50)
y= int(two_a) * x **2 + int(two_b) * x + int(two_c)
plt.plot(x, y)
plt.show()
return
def selector_listener(self, *args):
self.select.set(self.selector.get())
print(self.select.get())
def int_window(self):
frame1= tk.Frame(self)
frame2=tk.Frame(self)
frame3=tk.Frame(self)
tk.Label(frame1,text="k",width=1).grid(row=1,column=0)
tk.Entry(frame1,textvariable=self.one_k).grid(row=1,column=1)
tk.Label(frame1,text="b",width=1).grid(row=1,column=2)
tk.Entry(frame1,textvariable=self.one_b).grid(row=1,column=3)
tk.Label(frame1,text="a").grid(row=2,column=0)
tk.Entry(frame1,textvariable=self.two_a).grid(row=2,column=1)
tk.Label(frame1,text="b").grid(row=2,column=2)
tk.Entry(frame1,textvariable=self.two_b).grid(row=2,column=3)
tk.Label(frame1,text="c").grid(row=2,column=4)
tk.Entry(frame1,textvariable=self.two_c).grid(row=2,column=5)
tk.Label(frame1,text="字符串", width=6).grid(row=3,column=0)
tk.Entry(frame1,textvariable=self.str_para).grid(row=3,column=1)
tk.Label(frame1,text="功能选择").grid(row=0,column=0)
self.selector = ttk.Combobox(frame1,values=("一元函数","二元函数","二维码生成"),width="15")
self.selector.grid(row=0,column=1)
self.selector.current(0)
self.selector.bind("<<ComboboxSelected>>", self.selector_listener)
frame1.grid(pady=15)
button=tk.Button(self,text="运行图像",width=15,command=self.Buttonclick)
button.grid(padx=5)
if __name__ == '__main__':
root = tk.Tk()
application = Application( root = root )
application.mainloop()
|
