Revert "fix 無法使用KeyboardInterrupt退出程式 " (#274)

Revert "feat: 添加信号处理器以优雅地处理应用退出"

This reverts commit 09ff31b.

Author: XiaoYouChR

Ghost-Downloader-3.py

@@ -2,7 +2,6 @@
 import getpass
 import os
 import sys
-import signal
 
 from qfluentwidgets import qconfig
 
@@ -26,14 +25,6 @@
 
 app = SingletonApplication(sys.argv, "Ghost Downloader")
 
-# 添加信号处理器
-def signal_handler(signum, frame):
-    """处理 SIGINT 信号（Ctrl+C）"""
-    print("\n接收到退出信号，正在关闭应用...")
-    app.quit()
-
-signal.signal(signal.SIGINT, signal_handler)
-
 # Starting Program
 import time
 import warnings
@@ -100,17 +91,10 @@ def signal_handler(signum, frame):
 speedLimiter.timeout.connect(cfg.resetGlobalSpeed)  # 刷新 globalSpeed为 0
 speedLimiter.start()
 
-try:
-    w = MainWindow(silence=True if "--silence" in sys.argv else False)
-
-    # loading plugins
-    pluginsPath=os.path.join(cfg.appPath, "plugins")
-    loadPlugins(w, pluginsPath)
+w = MainWindow(silence=True if "--silence" in sys.argv else False)
 
-    sys.exit(app.exec())
+# loading plugins
+pluginsPath=os.path.join(cfg.appPath, "plugins")
+loadPlugins(w, pluginsPath)
 
-except KeyboardInterrupt:
-    print("\n用户中断，正在退出...")
-    speedLimiter.stop()
-    app.quit()
-    sys.exit(0)
+sys.exit(app.exec())