Python实现提前查询考研成绩
Posted Python无霸哥
tags:
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目录
一、填写相关信息
使用时请先在代码所在目录新建 info.json，内容如下
"xm": "上岸人",
"zjhm": "xxx",
"ksbh": "xxx",
"bkdwdm": "xxx",
"sendEmail":"xxx",
"code":"xxx",
"toAddr":"xxx",
"key":"xxx",
"time":"120"
并且根据如下字段说明将 info.json 中各个字段修改为需要查询的考研人的信息（准考证上都有）
xm：姓名
zjhm：身份证号
ksbh：考生编号
bkdwdm：报考单位编号
sendEmail：发件人Email（可以是自己的Email）
code：发件人Email授权码
toAddr：收件人Email
key：最后一门考的专业课名称或者所含字符，例如数据结构可以填写数据结构或数据
time：每隔多少秒查询一次
二、发件人Email说明
可以使用QQ邮箱
进入Web端，点击设置 > 账户 > POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务
理论上只要开启SMTP服务，然而反正在邮件客户端登录都是需要授权码的，不如把这些服务都开了
然后点击生成授权码
三、代码实现
1. 查询成绩并且发送到邮箱版本
一旦有查询结果会直接发送到邮箱
#我的Python交流群：748989764
import json
import random
import sys
import time
import requests
import smtplib
from email.mime.text import MIMEText
from email.header import Header
# import urllib3
# urllib3.disable_warnings()
url = "https://yz.chsi.com.cn/apply/cjcx/cjcx.do"
with open('info.json', 'r', encoding='UTF-8') as f:
info = json.load(f)
# temp = "https://yz.chsi.com.cn/apply/cjcx/t/" + info["bkdwdm"] + ".dhtml"
class EmailOP:
def __init__(self, host, port, user, password):
"""
host：邮件服务器地址
port：邮件服务器端口
user：邮箱账户名
password：邮箱账户的授权码（注意是授权码，不是邮箱的登录密码）
"""
self.user = user
self.password = password
self.smtp = smtplib.SMTP() # 创建SMTP对象
self.smtp.connect(host=host, port=port) # 连接到SMTP服务器
self.smtp.login(user=self.user, password=self.password) # 登录邮箱
def send(self, From, To, Subject, Context, to_addrs):
"""
Context：邮件正文
From：发送者昵称（随便取）
To：接收者昵称（随便取）
Subject：邮件主题
to_addrs: 收件人邮箱地址
"""
message = MIMEText(Context, 'plain', 'utf-8')
message['From'] = Header(From)
message['To'] = Header(To)
message['Subject'] = Header(Subject)
self.smtp.sendmail(from_addr=self.user, to_addrs=to_addrs, msg=message.as_string())
def main():
headers_list = [
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (Linux; android 8.0.0; SM-G955U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 10; SM-G981B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.162 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Crios/87.0.4280.77 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.109 Safari/537.36 CrKey/1.54.248666'
,
'user-agent': 'Mozilla/5.0 (X11; Linux aarch64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.188 Safari/537.36 CrKey/1.54.250320'
,
'user-agent': 'Mozilla/5.0 (BB10; Touch) AppleWebKit/537.10+ (KHTML, like Gecko) Version/10.0.9.2372 Mobile Safari/537.10+'
,
'user-agent': 'Mozilla/5.0 (PlayBook; U; RIM Tablet OS 2.1.0; en-US) AppleWebKit/536.2+ (KHTML like Gecko) Version/7.2.1.0 Safari/536.2+'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.3; en-us; SM-N900T Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.1; en-us; GT-N7100 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.0; en-us; GT-I9300 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 7.0; SM-G950U Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.84 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; SM-G965U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.111 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.1.0; SM-T837A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; U; en-us; KFAPWI Build/JDQ39) AppleWebKit/535.19 (KHTML, like Gecko) Silk/3.13 Safari/535.19 Silk-Accelerated=true'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.4.2; en-us; LGMS323 Build/KOT49I.MS32310c) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia 550) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mobile Safari/537.36 Edge/14.14263'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 10 Build/MOB31T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 5X Build/OPR4.170623.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 7.1.1; Nexus 6 Build/N6F26U) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 6P Build/OPP3.170518.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 7 Build/MOB30X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Lumia 520)'
,
'user-agent': 'Mozilla/5.0 (MeeGo; NokiaN9) AppleWebKit/534.13 (KHTML, like Gecko) NokiaBrowser/8.5.0 Mobile Safari/534.13'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 9; Pixel 3 Build/PQ1A.181105.017.A1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 10; Pixel 4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 11; Pixel 3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.181 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Pixel 2 XL Build/OPD1.170816.004) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1'
,
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (iPad; CPU OS 11_0 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) Version/11.0 Mobile/15A5341f Safari/604.1'
,
"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.78"
]
head =
"User-Agent": str(random.choice(headers_list)["user-agent"]),
"Referer": "https://yz.chsi.com.cn/apply/cjcx/t/" + info["bkdwdm"] + ".dhtml"
data =
"xm": info["xm"],
"zjhm": info["zjhm"],
"ksbh": info["ksbh"],
"bkdwdm": info["bkdwdm"],
"checkcode": ""
try:
res = requests.post(url=url, headers=head, data=data)
if res.ok == True:
if info["key"] in res.text:
print("[LOG] ！！！已查询到成绩")
email_op = EmailOP(host="smtp.qq.com", port=25, user=info["sendEmail"], password=info["code"])
email_op.send(From="996考研成绩查询机器人", To=info["xm"], Subject=info["xm"] + "您好，已查到成绩！！！", Context=res.text,
to_addrs=info["toAddr"])
sys.exit()
else:
print("[LOG] 未查询到结果")
res.close()
else:
res.close()
print("[ERROR] 网络错误，HTTP响应状态码：" + str(res.status_code))
email_op = EmailOP(host="smtp.qq.com", port=25, user=info["sendEmail"], password=info["code"])
email_op.send(From="996考研成绩查询机器人", To="程序猿", Subject="报错了！快去修BUG！", Context="网络错误，HTTP响应状态码：" + str(res.status_code),
to_addrs=info["toAddr"])
except requests.exceptions.RequestException as e:
email_op = EmailOP(host="smtp.qq.com", port=25, user=info["sendEmail"], password=info["code"])
email_op.send(From="996考研成绩查询机器人", To="程序猿", Subject="报错了！快去修BUG！", Context="捕捉到异常，请查看程序，若程序停止请重新打开",
to_addrs=info["toAddr"])
if __name__ == '__main__':
print("[LOG] 服务已开启")
print("[LOG] 每间隔" + info["time"] + "秒查询1次")
try:
# 登录邮箱
email_op = EmailOP(host="smtp.qq.com", port=25, user=info["sendEmail"], password=info["code"])
# 发送邮件
email_op.send(From="996考研成绩查询机器人", To=info["xm"], Subject="服务已开启", Context=info["xm"] + "您好，已经开始为您查询成绩",
to_addrs=info["toAddr"])
except smtplib.SMTPAuthenticationError as e:
print("[ERROR] 登录邮箱出现问题，请检查info.json中sendEmail与code字段是否填写正确")
print("[ERROR] sendEmail填写发件人邮箱，code填写授权码")
print("[ERROR] ！！！注意是授权码，不是邮箱的登录密码")
sys.exit()
count = 0
while True:
try:
count += 1
print(f"[LOG] 第count次查询")
main()
time.sleep(int(info["time"]))
except requests.exceptions.RequestException as e:
email_op = EmailOP(host="smtp.qq.com", port=25, user=info["sendEmail"], password=info["code"])
email_op.send(From="996考研成绩查询机器人", To="程序猿", Subject="报错了！快去修BUG！", Context="捕捉到异常，请查看程序，若程序停止请重新打开",
to_addrs=info["toAddr"])
main()
time.sleep(int(info["time"]))
2. 查询成绩并且砍掉了发送邮件版本
一旦有查询结果会保存当前目录的res.html
#我的Python交流群：748989764
import json
import random
import sys
import time
import requests
import smtplib
from email.mime.text import MIMEText
from email.header import Header
# import urllib3
# urllib3.disable_warnings()
url = "https://yz.chsi.com.cn/apply/cjcx/cjcx.do"
with open('info.json', 'r', encoding='UTF-8') as f:
info = json.load(f)
# temp = "https://yz.chsi.com.cn/apply/cjcx/t/" + info["bkdwdm"] + ".dhtml"
def main():
headers_list = [
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; SM-G955U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 10; SM-G981B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.162 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/87.0.4280.77 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.109 Safari/537.36 CrKey/1.54.248666'
,
'user-agent': 'Mozilla/5.0 (X11; Linux aarch64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.188 Safari/537.36 CrKey/1.54.250320'
,
'user-agent': 'Mozilla/5.0 (BB10; Touch) AppleWebKit/537.10+ (KHTML, like Gecko) Version/10.0.9.2372 Mobile Safari/537.10+'
,
'user-agent': 'Mozilla/5.0 (PlayBook; U; RIM Tablet OS 2.1.0; en-US) AppleWebKit/536.2+ (KHTML like Gecko) Version/7.2.1.0 Safari/536.2+'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.3; en-us; SM-N900T Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.1; en-us; GT-N7100 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.0; en-us; GT-I9300 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 7.0; SM-G950U Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.84 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; SM-G965U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.111 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.1.0; SM-T837A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; U; en-us; KFAPWI Build/JDQ39) AppleWebKit/535.19 (KHTML, like Gecko) Silk/3.13 Safari/535.19 Silk-Accelerated=true'
,
'user-agent': 'Mozilla/5.0 (Linux; U; Android 4.4.2; en-us; LGMS323 Build/KOT49I.MS32310c) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Windows Phone 10.0; Android 4.2.1; Microsoft; Lumia 550) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mobile Safari/537.36 Edge/14.14263'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Moto G (4)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 10 Build/MOB31T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 5X Build/OPR4.170623.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 7.1.1; Nexus 6 Build/N6F26U) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Nexus 6P Build/OPP3.170518.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 6.0.1; Nexus 7 Build/MOB30X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Lumia 520)'
,
'user-agent': 'Mozilla/5.0 (MeeGo; NokiaN9) AppleWebKit/534.13 (KHTML, like Gecko) NokiaBrowser/8.5.0 Mobile Safari/534.13'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 9; Pixel 3 Build/PQ1A.181105.017.A1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 10; Pixel 4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 11; Pixel 3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.181 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (Linux; Android 8.0.0; Pixel 2 XL Build/OPD1.170816.004) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Mobile Safari/537.36'
,
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1'
,
'user-agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1'
,
'user-agent': 'Mozilla/5.0 (iPad; CPU OS 11_0 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) Version/11.0 Mobile/15A5341f Safari/604.1'
,
"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.78"
]
head =
"User-Agent": str(random.choice(headers_list)["user-agent"]),
"Referer": "https://yz.chsi.com.cn/apply/cjcx/t/" + info["bkdwdm"] + ".dhtml"
为什么考研的都不是班里最优秀的？
为什么考研的都不是班里最优秀的？这一提问难免引起争议，因为事关如何定义最优秀的标准问题。
学习成绩好并不是优秀的唯一标准。如果是否优秀就看学习成绩，那么问题来了。成绩好的走上社会后业绩平平，成绩稍差但走上社会后却做出了突出成就，谁更优秀呢？显然应按照走上社会后的成就来评价优秀与否，而不宜按照学习时的成绩来评价了！
因此将提问改成“为什么考研的都不是班里成绩最好的？”就不会有什么争议了。
考研在保研之后，只有成绩最好的一部分人才符合保研的条件。成绩够不到保研资格的才不得不通过考研的途径获得读研资格。显然考研者的学习成绩当时都不会是他们班上最好的！
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