python用模板mysql-connector设计汽车数据库，有1.不要设计类，连接数据库 2.设计一个窗体，数据库建立admin和sales表 3.有添加，删除，修改，查询等功能 4.添加有time，buyer，brand，model，price的元素 5.查询可以salea表的内容，并且有提示,查询结果，不会出现全部内容 6.添加，删除，修改，查询都有按钮

好的，我了解了您的要求。首先，您需要安装mysql-connector-python库来使用Python连接MySQL数据库。以下是一个基本的Python连接MySQL数据库的示例代码，您可以在此基础上进行修改和拓展：

import mysql.connector

# 连接到MySQL数据库
mydb = mysql.connector.connect(
  host="localhost",
  user="yourusername",
  password="yourpassword",
  database="yourdatabase"
)

# 创建游标
mycursor = mydb.cursor()

# 执行SQL语句
mycursor.execute("SELECT * FROM yourtable")

# 获取结果集
myresult = mycursor.fetchall()

# 遍历结果集
for x in myresult:
  print(x)

接下来，您需要设计一个窗体来实现添加、删除、修改和查询汽车数据库的功能。您可以使用Python的Tkinter库来创建窗体和按钮。以下是一个基本的Tkinter窗体示例代码，您可以在此基础上进行修改和拓展：

import tkinter as tk

# 创建窗体
root = tk.Tk()
root.title("汽车数据库")

# 创建按钮
add_button = tk.Button(root, text="添加")
delete_button = tk.Button(root, text="删除")
update_button = tk.Button(root, text="修改")
query_button = tk.Button(root, text="查询")

# 显示按钮
add_button.pack()
delete_button.pack()
update_button.pack()
query_button.pack()

# 运行窗体
root.mainloop()

在窗体中添加、删除、修改和查询汽车数据库的功能，您需要使用MySQL的INSERT、DELETE、UPDATE和SELECT语句。以下是一个基本的MySQL语句示例代码，您可以在此基础上进行修改和拓展：

# 插入数据
sql = "INSERT INTO yourtable (time, buyer, brand, model, price) VALUES (%s, %s, %s, %s, %s)"
val = ("2022-01-01", "张三", "奔驰", "C200L", 500000)
mycursor.execute(sql, val)
mydb.commit()
print(mycursor.rowcount, "条记录插入成功。")

# 删除数据
sql = "DELETE FROM yourtable WHERE brand = '奔驰'"
mycursor.execute(sql)
mydb.commit()
print(mycursor.rowcount, "条记录删除成功。")

# 修改数据
sql = "UPDATE yourtable SET price = 450000 WHERE brand = '奥迪'"
mycursor.execute(sql)
mydb.commit()
print(mycursor.rowcount, "条记录修改成功。")

# 查询数据
sql = "SELECT * FROM yourtable WHERE brand = '宝马'"
mycursor.execute(sql)
myresult = mycursor.fetchall()
for x in myresult:
  print(x)

最后，您需要将Tkinter窗体和MySQL语句结合起来，实现完整的汽车数据库功能。以下是一个示例代码，您可以在此基础上进行修改和拓展：

import tkinter as tk
import mysql.connector

# 连接到MySQL数据库
mydb = mysql.connector.connect(
  host="localhost",
  user="yourusername",
  password="yourpassword",
  database="yourdatabase"
)

# 创建游标
mycursor = mydb.cursor()

# 创建窗体
root = tk.Tk()
root.title("汽车数据库")

# 添加汽车数据
def add_car():
  # 获取输入框的值
  time = time_entry.get()
  buyer = buyer_entry.get()
  brand = brand_entry.get()
  model = model_entry.get()
  price = price_entry.get()
  
  # 执行SQL语句
  sql = "INSERT INTO yourtable (time, buyer, brand, model, price) VALUES (%s, %s, %s, %s, %s)"
  val = (time, buyer, brand, model, price)
  mycursor.execute(sql, val)
  mydb.commit()
  
  # 清空输入框
  time_entry.delete(0, tk.END)
  buyer_entry.delete(0, tk.END)
  brand_entry.delete(0, tk.END)
  model_entry.delete(0, tk.END)
  price_entry.delete(0, tk.END)
  
  # 提示添加成功
  tk.messagebox.showinfo("提示", "添加成功。")

# 删除汽车数据
def delete_car():
  # 获取输入框的值
  brand = brand_entry.get()
  
  # 执行SQL语句
  sql = "DELETE FROM yourtable WHERE brand = %s"
  val = (brand,)
  mycursor.execute(sql, val)
  mydb.commit()
  
  # 清空输入框
  time_entry.delete(0, tk.END)
  buyer_entry.delete(0, tk.END)
  brand_entry.delete(0, tk.END)
  model_entry.delete(0, tk.END)
  price_entry.delete(0, tk.END)
  
  # 提示删除成功
  tk.messagebox.showinfo("提示", "删除成功。")

# 修改汽车数据
def update_car():
  # 获取输入框的值
  brand = brand_entry.get()
  price = price_entry.get()
  
  # 执行SQL语句
  sql = "UPDATE yourtable SET price = %s WHERE brand = %s"
  val = (price, brand)
  mycursor.execute(sql, val)
  mydb.commit()
  
  # 清空输入框
  time_entry.delete(0, tk.END)
  buyer_entry.delete(0, tk.END)
  brand_entry.delete(0, tk.END)
  model_entry.delete(0, tk.END)
  price_entry.delete(0, tk.END)
  
  # 提示修改成功
  tk.messagebox.showinfo("提示", "修改成功。")

# 查询汽车数据
def query_car():
  # 获取输入框的值
  brand = brand_entry.get()
  
  # 执行SQL语句
  sql = "SELECT * FROM yourtable WHERE brand = %s"
  val = (brand,)
  mycursor.execute(sql, val)
  myresult = mycursor.fetchall()
  
  # 显示查询结果
  result_text.delete(1.0, tk.END)
  for x in myresult:
    result_text.insert(tk.END, x)
  
  # 提示查询成功
  tk.messagebox.showinfo("提示", "查询成功。")

# 创建输入框
time_label = tk.Label(root, text="时间：")
time_label.grid(row=0, column=0)
time_entry = tk.Entry(root)
time_entry.grid(row=0, column=1)

buyer_label = tk.Label(root, text="买家：")
buyer_label.grid(row=1, column=0)
buyer_entry = tk.Entry(root)
buyer_entry.grid(row=1, column=1)

brand_label = tk.Label(root, text="品牌：")
brand_label.grid(row=2, column=0)
brand_entry = tk.Entry(root)
brand_entry.grid(row=2, column=1)

model_label = tk.Label(root, text="型号：")
model_label.grid(row=3, column=0)
model_entry = tk.Entry(root)
model_entry.grid(row=3, column=1)

price_label = tk.Label(root, text="价格：")
price_label.grid(row=4, column=0)
price_entry = tk.Entry(root)
price_entry.grid(row=4, column=1)

# 创建按钮
add_button = tk.Button(root, text="添加", command=add_car)
delete_button = tk.Button(root, text="删除", command=delete_car)
update_button = tk.Button(root, text="修改", command=update_car)
query_button = tk.Button(root, text="查询", command=query_car)

# 显示按钮
add_button.grid(row=5, column=0)
delete_button.grid(row=5, column=1)
update_button.grid(row=5, column=2)
query_button.grid(row=5, column=3)

# 创建查询结果框
result_label = tk.Label(root, text="查询结果：")
result_label.grid(row=6, column=0)
result_text = tk.Text(root, width=50, height=10)
result_text.grid(row=7, column=0, columnspan=4)

# 运行窗体
root.mainloop()

希望这些示例代码能够帮助您设计和实现汽车数据库的功能。如果您有任何问题或需要更详细的解释，请随时询问。