1.0.0

update

README.md

@@ -1,2 +1,3 @@
 # SDZPLF
  线性函数异号零点求解
+2023‎年‎11‎月‎25‎日, ‏‎19:08:41

main.py

@@ -0,0 +1,127 @@
+#  Copyright (c) 2019 - 2039 XueQian  #
+#         version_added:: 4.0          #
+#         -*- coding:utf-8 -*-        #
+from fractions import Fraction
+from math import *
+import time
+import tkinter
+from tkinter import ttk
+import os
+import threading
+import easygui
+import random
+
+"./CMSXTJ.ttf"
+
+fun = {}
+
+
+def setvaluefun(button, inputer):
+    global fun
+    button.config(state="disabled")
+    code = easygui.textbox(codebox=True)
+    if code != '':
+        name = f'x{random.randint(10000, 99999)}(x)'
+        # print(f'def {name}:\n    ' + code.replace('\n', '\n    '))
+        # print(f'global {name[:-3]}')
+        exec(f'def {name}:\n    ' + code.replace('\n', '\n    '))
+        exec(f'fun["{name[:-3]}"] = eval(name[:-3])')
+        inputer.delete(0, tkinter.END)
+        inputer.insert(0, f'fun["{name[:-3]}"](x)')
+        # print(fun)
+    return button.config(state="normal")
+
+
+def start(function, text, button):
+    global fun
+    button.config(state="disabled")
+    if not function:
+        text.configure(text='请输入函数！')
+        return button.config(state="normal")
+    function = eval(f'(lambda x: {function})')
+    num = -100
+    jie = []
+    while num <= 100:
+        jie.append(num)
+        jin = 1
+        num += jin
+        old = function(num)
+        while abs(jin) > 0.0000000000000001 and num <= 100:
+            guo = ''
+            for i in range(len(jie)):
+                guo += f'x{i + 1}={jie[i]}; '
+            text.configure(text=guo)
+            time.sleep(0.001)
+
+            num += jin
+            now = function(num)
+            # print([now])
+            if now != 0 and not now:
+                text.configure(text='没有设置返回值！')
+                return button.config(state="normal")
+            # print(num, now, jin)
+            jie[-1] = num
+            if now == 0 or abs(now - 0) < 1e-14:
+                # print(9998)
+                break
+            elif old * now < 0:
+                jin = - jin / 10
+            # elif old == now and abs(now - 0) < 1e-15:
+            #     del jie[-1]
+            #     break
+            old = now
+    if not abs(function(jie[-1])) < 1e-15:
+        del jie[-1]
+
+    # print(8889, jin)
+    guo = ''
+    for i in range(len(jie)):
+        guo += f'x{i + 1}={jie[i]}; '
+    text.configure(text='在 (-100, +100] 中无异号零点或整数零点' if guo == '' else ('姐数超出限制' if len(jie) > 40 else guo))
+    return button.config(state="normal")
+
+
+if __name__ == '__main__':
+    font = "simsun"
+
+    r1 = tkinter.Tk()
+    r1.geometry("530x180")
+    r1.title('函数的姐')
+    r1.resizable(width=True, height=False)
+
+    style = ttk.Style(r1)
+
+    # 加载自定义字体文件
+    # style.font_create("custom_font", font="./CMSXTJ.ttf")
+
+    # ('CMSXTJ', 15, "bold")
+    tkinter.Label(r1, text='线性函数异号零点求解 XueQian', font=(font, 15, "bold"), foreground='#f60',
+                  background='#f0f0f0').place(x=10, y=5)
+
+    tkinter.Label(r1, text='函数：', font=(font, 15), foreground='#000',
+                  background='#f0f0f0').place(x=10, y=40)
+
+    s1 = tkinter.Entry(r1, font=(font, 15), bd=4, width=30)
+    s1.place(x=70, y=40)
+    s1.insert(0, 'x')
+
+    setvaluebutton = tkinter.Button(r1, text='设置分段函数', command=lambda: setvaluefun(setvaluebutton, s1),
+                                    font=(font, 15),
+                                    foreground='#000')
+    setvaluebutton.place(x=385, y=36)
+
+    tkinter.Label(r1, text='结果：', font=(font, 15), foreground='#000',
+                  background='#f0f0f0').place(x=10, y=90)
+
+    res = tkinter.Label(r1, text='x1=0; ', font=(font, 15), foreground='#000',
+                        background='#f0f0f0')
+    res.place(x=70, y=90)
+
+    startb = tkinter.Button(r1, text='开始', command=lambda: eval(
+        'threading.Thread(target=lambda: start(s1.get(), res, startb)).start()'), font=(font, 15),
+                            foreground='#000')
+    startb.place(x=10, y=130)
+
+    tkinter.Button(r1, text='屏幕键盘', command=lambda: os.popen('osk'), font=(font, 15), foreground='#000').place(
+        x=100, y=130)
+    r1.mainloop()

requirements.txt

@@ -0,0 +1 @@
+easygui==0.98.3