增加flask启动端口检测，增加H2协议的支持。

Utils/AiUtils.py

@@ -2,7 +2,11 @@ import html
 import json
 import os
 import re
+import signal
+import socket
 import subprocess
+import sys
+import time
 import xml.etree.ElementTree as ET
 from pathlib import Path
 import cv2
@@ -62,6 +66,56 @@ class AiUtils(object):
     #         print(e)
     #         return -1, -1
 
+    @classmethod
+    def flask_port_free(cls,port):
+        """无需 psutil 的版本，通过系统命令查 PID"""
+
+        def can_bind(p):
+            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            try:
+                s.bind(("0.0.0.0", p))
+                s.close()
+                return True
+            except OSError:
+                s.close()
+                return False
+
+        if can_bind(port):
+            return
+
+        print(f"[ensure_port_free] Port {port} is occupied. Searching PID...")
+
+        pids = set()
+
+        if sys.platform.startswith("darwin") or sys.platform.startswith("linux"):
+            cmd = f"lsof -t -i:{port}"
+            proc = subprocess.run(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+            for line in proc.stdout.splitlines():
+                if line.strip().isdigit():
+                    pids.add(int(line.strip()))
+
+        elif sys.platform.startswith("win"):
+            cmd = f"netstat -ano | findstr :{port}"
+            proc = subprocess.run(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
+            for line in proc.stdout.splitlines():
+                parts = line.split()
+                if len(parts) >= 5 and parts[-1].isdigit():
+                    pids.add(int(parts[-1]))
+
+        else:
+            raise RuntimeError("Unsupported platform for ensure_port_free")
+
+        for pid in pids:
+            try:
+                print(f"[ensure_port_free] Killing PID {pid}...")
+                os.kill(pid, signal.SIGKILL)
+            except Exception as e:
+                print(f"[ensure_port_free] Failed to kill PID {pid}: {e}")
+
+        time.sleep(0.3)
+        if not can_bind(port):
+            raise RuntimeError(f"[ensure_port_free] Port {port} still occupied after kill.")
+
     @classmethod
     def findImageInScreen(cls, target, udid):
         try: