update README

1. update root README, pointer to all proj
2. create all README
Powered by claude code, maybe mistake, checked and commit manually.

jw/main.py

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+import hashlib
+import requests
+import re
+import json
+import base64
+import tenacity as retry
+
+def recapture(username, password, b64, ID):
+    data = {"username": username, "password": password, "ID": ID, "b64": b64, "version": "3.1.1"}
+    data_json = json.dumps(data)
+    result = json.loads(requests.post("http://www.fdyscloud.com.cn/tuling/predict", data=data_json).text)
+    return result
+
+
+def pwd_md5(string: str) -> str:
+    md5_part1 = hashlib.md5((string + "{Urp602019}").encode()).hexdigest().lower()
+    md5_part2 = hashlib.md5(string.encode()).hexdigest().lower()
+    final_result = md5_part1 + '*' + md5_part2
+    return final_result
+
+@retry.retry(stop=retry.stop_after_attempt(3), wait=retry.wait_random(3,5),reraise=True)
+def login(username: str, password: str) -> requests.Session:
+    print("正在登录...")
+    session = requests.Session()
+
+    req = session.get("http://jwstudent.lnu.edu.cn/login")
+    req.raise_for_status()
+    html = req.text
+    match = re.search(r'name="tokenValue" value="(.+?)">', html)
+    if match:
+        token_value = match.group(1)
+    else:
+        raise ValueError("未找到 tokenValue")
+
+    req = session.get("http://jwstudent.lnu.edu.cn/img/captcha.jpg")
+    req.raise_for_status()
+    im = req.content
+    b64 = base64.b64encode(im).decode('utf-8')
+    captcha_code = recapture(username="fbcfbc6", password="b0qDHNSSg5LxBRzO3hfpbTE5", b64=b64, ID="04897896")["data"]["result"]
+    with open("captcha.jpg", "wb") as f:
+        f.write(im)
+    print(captcha_code)
+
+    hashed_password = pwd_md5(password)
+
+    # 模拟请求的 payload
+    payload = {
+        "j_username": username,
+        "j_password": hashed_password,
+        "j_captcha": captcha_code,
+        "tokenValue": token_value
+    }
+
+    # 发送 POST 请求
+    url = "http://jwstudent.lnu.edu.cn/j_spring_security_check"  # 替换为实际登录地址
+    headers = {
+        "User-Agent": "Mozilla/5.0",
+        "Content-Type": "application/x-www-form-urlencoded"
+    }
+    response = session.post(url, data=payload, headers=headers)
+
+    if "发生错误" in response.text:
+        err = re.search(r'<strong>发生错误！</strong>(.+)', response.text)
+        if err:
+            error_message = err.group(1).strip()
+            raise ValueError(f"登录失败: {error_message}")
+        raise ValueError("登录失败")
+    return session
+
+
+print(login("20211299305", "123"))