代码如下：

import itchatmp
import pyodbc 

itchatmp.update_config(itchatmp.WechatConfig(
    token='*******替换成自己的********',
    appId = '******替换成自己的*********',
    appSecret = '*******替换成自己的********'))

@itchatmp.msg_register(itchatmp.content.TEXT)
def text_reply(msg):
    rcmsg=msg['Content']
    
    if rcmsg=="生日":
        rcmsg=TodayBirth()
    return rcmsg

def TodayBirth():
    server = '*******\\SQLEXPRESS' 
    database = '*******' 
    username = 'sa' 
    password = '*******'
    
    cnxn = pyodbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+ password)
    cursor = cnxn.cursor()
    
    #Sample select query
    cursor.execute("select * from namelist where "+
    "(month(getdate()) = month(birth) and day(getdate()) = day(birth)) ;")
    
    rctb ="今天过生日的有：\r\n"
    row = cursor.fetchone()
    
    while row: 
        if row[2]=="男":    
            row[2]="帅哥"
        elif row[2]=="女":
            row[2]="美女"
        rctb =rctb+"学号是:"+str(row[0])+"     生日为:" + str(row[1]) +"    是位"+row[2]+ "\r\n"
        row = cursor.fetchone()

    cursor.execute("select * from namelist where "+
    "(month(getdate()) = month(birth) and day(getdate()+1) = day(birth)) ;")
    
    row = cursor.fetchone() 
    rctb =rctb+"明天过生日的有：\r\n"
    n = 0
    
    while row: 
        if row[2]=="男":    
            row[2]="帅哥"
        elif row[2]=="女":
            row[2]="美女"
        rctb =rctb+"学号是:"+str(row[0])+"     生日为:"
        +str(row[1]) +"    是位"+row[2]+ "\r\n"
        row = cursor.fetchone()
        
    if n==0:
        rctb =rctb+"明天没有人过生日。。。。"
    
    cnxn.commit()  
    cursor.close()  
    cnxn.close()
    return rctb

itchatmp.run()

得到的结果：

3.1运行结果.jpg