【Android 自我學習】activecreateor.bat 的解釋

activecreateor.bat 內容為:

@echo off<br />rem Copyright (C) 2007 The Android Open Source Project<br />rem<br />rem Licensed under the Apache License, Version 2.0 (the "License");<br />rem you may not use this file except in compliance with the License.<br />rem You may obtain a copy of the License at<br />rem<br />rem http://www.apache.org/licenses/LICENSE-2.0<br />rem<br />rem Unless required by applicable law or agreed to in writing, software<br />rem distributed under the License is distributed on an "AS IS" BASIS,<br />rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<br />rem See the License for the specific language governing permissions and<br />rem limitations under the License.</p><p>rem don't modify the caller's environmeny<br />setlocal</p><p>set toolsdir=%~dp0/<br />set acjarfile=%toolsdir%/lib/activitycreator.jar</p><p>call java -Dcom.android.activitycreator.toolsdir="%toolsdir%" -cp "%acjarfile%" com.android.activitycreator.ActivityCreator %*<br />

set toolsdir=%~dp0
的意思就是 set toolsdir=D:/Work/Android/android-sdk-windows-1.0_r2/tools (即:Android模擬器SDK的安裝目錄下的tools檔案夾)
%0代表批處理本身的檔案名稱 activitycreator.bat
~dp表示變數擴充
d既是擴充到分區號 D:
p就是擴充到路徑 /Work/Android/android-sdk-windows-1.0_r2/tools
dp就是擴充到分區號路徑 d:/Work/Android/android-sdk-windows-1.0_r2/tools