diff --git a/计算器.py b/计算器.py
index 66795c7..6353008 100644
--- a/计算器.py
+++ b/计算器.py
@@ -11,8 +11,7 @@ window.geometry('520x300+600+300')
 window.resizable(False, False)
 # 设置窗口标题
 window.title('计算器')
-# 背景颜色
-#window.config(background="BlueViolet")
+# 背景颜色,例：window.config(background="BlueViolet")
 window.config(background="Blue")
 # 自动刷新字符串变量，可用 set 和 get 方法进行传值和取值
 content_var = tk.StringVar(window, '')
@@ -22,70 +21,88 @@ content_entry = tk.Entry(window, textvariable=content_var, bd=10)
 content_entry['state'] = 'readonly'
 # 设置文本框坐标及宽高
 content_entry.place(x=20, y=10, width=300, height=38)
-
+# 记录计算过程
 record_text = tk.Text(window, wrap=tk.WORD, height=10)
 record_text.place(x=320, y=50, width=180, height=240)
 
 # 按钮显示内容
-value = ['eˣ','π', '**', '%', '//','ln',
-         '√','⌫', '(', ')', '/','lg',
-         'x!','7', '8', '9', '*','tan',
-         'x³','4', '5', '6', '-','cos',
-         'x²','1', '2', '3', '+','sin',]
+values = ['eˣ', 'π', '**', '%', '//', 'ln',
+          '√', '⌫', '(', ')', '/', 'lg',
+          'x!', '7', '8', '9', '*', 'tan',
+          'x³', '4', '5', '6', '-', 'cos',
+          'x²', '1', '2', '3', '+', 'sin']
 
-value0 = ['+/-','C', '0', '.', '=',]
+# 其余特殊按钮
+value = ['+/-', 'C', '0', '.', '=']
 
+index_s = 0
 index = 0
-index0 = 0
 # 将按钮进行 5x6 放置
 for row in range(5):
     for col in range(6):
-        d = value[index]
-        index += 1
-        if (row==1 and (col==1 or col==2 or col==3)):
-            btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
-                                  command=lambda x=d: onclick(x), bg="gray", fg="black")
-            btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
-        elif (row==2 and (col==1 or col==2 or col==3)):
-            btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
-                                  command=lambda x=d: onclick(x), bg="LightPink", fg="red")
-            btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
-        elif (row==3 and (col==1 or col==2 or col==3)):
-            btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
-                                  command=lambda x=d: onclick(x), bg="LightPink", fg="red")
-            btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
-        elif (row==4 and (col==1 or col==2 or col==3)):
-            btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
-                                  command=lambda x=d: onclick(x), bg="LightPink", fg="red")
-            btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
-        elif (col==5):
+        d = values[index_s]
+        index_s += 1
+        if row == 1:
+            if col == 1 or col == 2 or col == 3:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="gray", fg="black")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+            elif col == 0 or col == 4:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="DeepSkyBlue", fg="purple")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+            else:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="orange", fg="blue")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+                
+        elif row == 2 or row == 3 or row == 4:
+            if col == 1 or col == 2 or col == 3:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="LightPink", fg="red")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+            elif col == 0 or col == 4:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="DeepSkyBlue", fg="purple")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+            else:
+                btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
+                                      command=lambda x=d: onclick(x), bg="orange", fg="blue")
+                btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+                
+        elif col == 5:
             btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
                                   command=lambda x=d: onclick(x), bg="orange", fg="blue")
             btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
+            
         else:
             btn_digit = tk.Button(window, text=d, font=("Helvetica", 14, "bold"),
                                   command=lambda x=d: onclick(x), bg="DeepSkyBlue", fg="purple")
             btn_digit.place(x=20 + col * 50, y=50 + row * 40, width=50, height=40)
 
-for l in range(5):
-    c = value0[index0]
-    index0 += 1
-    if (l == 2):
+for leo in range(5):
+    c = value[index]
+    index += 1
+    if leo == 2:
         btn_digit = tk.Button(window, text=c, font=("Helvetica", 14, "bold"),
                               command=lambda x=c: onclick(x), bg="LightPink", fg="red")
-        btn_digit.place(x=20 + l * 50, y=250, width=50, height=40)
-    elif (l == 0):
+        btn_digit.place(x=20 + leo * 50, y=250, width=50, height=40)
+        
+    elif leo == 0:
         btn_digit = tk.Button(window, text=c, font=("Helvetica", 14, "bold"),
                               command=lambda x=c: onclick(x), bg="SpringGreen", fg="red")
-        btn_digit.place(x=20 + l * 50, y=250, width=50, height=40)
-    elif (l == 1):
+        btn_digit.place(x=20 + leo * 50, y=250, width=50, height=40)
+        
+    elif leo == 1:
         btn_digit = tk.Button(window, text=c, font=("Helvetica", 14, "bold"),
                               command=lambda x=c: onclick(x), bg="yellow", fg="red")
-        btn_digit.place(x=20 + l * 50, y=250, width=50, height=40)
-    elif (l == 3):
+        btn_digit.place(x=20 + leo * 50, y=250, width=50, height=40)
+        
+    elif leo == 3:
         btn_digit = tk.Button(window, text=c, font=("Helvetica", 14, "bold"),
                               command=lambda x=c: onclick(x), bg="SkyBlue", fg="red")
-        btn_digit.place(x=20 + l * 50, y=250, width=50, height=40)
+        btn_digit.place(x=20 + leo * 50, y=250, width=50, height=40)
+        
     else:
         btn_digit = tk.Button(window, text=c, font=("Helvetica", 14, "bold"),
                               command=lambda x=c: onclick(x), bg="LightCoral", fg="black")
@@ -99,6 +116,7 @@ btn_clear_record = tk.Button(window, text='清除记录', font=("Helvetica", 14,
                              command=lambda: record_text.delete(1.0, tk.END), bg="white", fg="black")
 btn_clear_record.place(x=320, y=250, width=180, height=40)
 
+
 # 点击事件
 def onclick(key):
     # 运算符
@@ -112,6 +130,7 @@ def onclick(key):
     if key in '0123456789':
         # 按下 0-9 在 content 中追加
         content += key
+    
     elif key == '.':
         # 将 content 从 +-*/ 这些字符的地方分割开来
         last_part = re.split(r'[+\-*/]', content)[-1]
@@ -121,9 +140,11 @@ def onclick(key):
             return
         else:
             content += key
+            
     elif key == 'C':
         # 清除文本框
         content = ''
+        
     elif key == '=':
         try:
             # 对输入的表达式求值
@@ -136,6 +157,7 @@ def onclick(key):
         except Exception as e:
             tk.messagebox.showerror('错误', f'无效表达式: {e}')
             return
+        
     elif key in operation:
         if content.endswith(operation):
             tk.messagebox.showerror('错误', '运算符号之间不能直接连接，需要加入数值！')
@@ -148,9 +170,11 @@ def onclick(key):
             content = content[1:]
         else:
             content = '-' + content
+            
     elif key in '()':
         # 直接在内容后面追加括号
         content += key
+        
     elif key == '√':
         # 从 . 处分割存入 n，n 是一个列表
         n = content.split('.')
@@ -160,13 +184,15 @@ def onclick(key):
         else:
             tk.messagebox.showerror('错误', '在实数范围内，负数不能算数平方根！')
             return
+        
     elif key == 'eˣ':
-        # 添加常数e的x次方
-        #content = exp(eval(content))
+        # 添加常数e的x次方,content = exp(eval(content))
         content += 'e**'
+        
     elif key == '⌫':
         # 删除最后一个字符
         content = content[:-1]
+        
     elif key == 'x²':
         # 计算平方
         try:
@@ -174,6 +200,7 @@ def onclick(key):
         except Exception as e:
             tk.messagebox.showerror('错误', f'无效表达式: {e}')
             return
+        
     elif key == 'x³':
         # 计算立方
         try:
@@ -181,6 +208,7 @@ def onclick(key):
         except Exception as e:
             tk.messagebox.showerror('错误', f'无效表达式: {e}')
             return
+        
     elif key == 'x!':
         # 计算阶乘
         try:
@@ -195,31 +223,43 @@ def onclick(key):
         except Exception as e:
             tk.messagebox.showerror('错误', f'无效的表达式: {e}')
             return
+        
     elif key == 'π':
         # 添加常数π
         content += 'π'
+        
     elif key == 'sin':
-        #content = sin(eval(content))
+        # 计算sin值,content = sin(eval(content))
         content += 'sin('
+        
     elif key == 'cos':
-        #content = cos(eval(content))
+        # 计算cos值,content = cos(eval(content))
         content += 'cos('
+        
     elif key == 'tan':
-        #content = tan(eval(content))
+        # 计算tan值,content = tan(eval(content))
         content += 'tan('
+        
     elif key == 'lg':
-        #content = log10(eval(content))
+        # 计算常数对数lg的值,content = log10(eval(content))
         content += 'log10('
+        
     elif key == 'ln':
-        #content = log(eval(content))
+        # 计算自然对数ln的值,content = log(eval(content))
         content += 'log('
+        
     elif key == 'rad':
+        # 当输入数字到三角函数运算时，默认为弧度制。
         content = str(eval(content)) + ' rad'
 
     # 将结果显示到文本框中
     content_var.set(content)
 
+
 # 运行主循环
+
 window.mainloop()
 
 # 2 + 9 * ((3*12) - 8) // 10 = 27
+# 3 * 4 ** 2 // 8 % 7 = 6
+# 3 + 5 % 6 * 2 // 8 = 4