```

-- coding: utf-8 --

import tkinter
from tkinter import *
import matplotlib
from tkinter import ttk
matplotlib.use('Agg') # 该模式下绘图无法显示，plt.show()也无法作用
from matplotlib.backends.backend_tkagg import (FigureCanvasTkAgg, NavigationToolbar2Tk)

Implement the default Matplotlib key bindings.

from matplotlib.backend_bases import key_press_handler
from matplotlib.figure import Figure
import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import pymysql

def search_info(sql):

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