Initial commit: Wpyw 网络测速工具（单文件 Python，零依赖）

测速.cmd

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+@echo off
+chcp 65001 >nul 2>&1
+setlocal
+cd /d "%~dp0"
+set "PY="
+where python >nul 2>nul && set "PY=python"
+if not defined PY where py >nul 2>nul && set "PY=py"
+if not defined PY (
+  echo [错误] 没有找到 Python，请先安装 Python 3.8+ 并勾选 "Add python.exe to PATH"
+  echo         下载地址: https://www.python.org/downloads/
+  pause
+  exit /b 1
+)
+%PY% "%~dp0wpyw-speedtest.py" %*
+set "RC=%ERRORLEVEL%"
+rem 双击运行时（无参数）保留窗口看结果
+if "%~1"=="" pause
+exit /b %RC%