如何用ant判断一个文件是否存在运行：E:\automatizeant -buildfile build2.xmlBuildfile: E:\automatize\b
如何用ant判断一个文件是否存在
运行：
E:\automatize>ant -buildfile build2.xml
Buildfile: E:\automatize\build2.xml
unzip:
[echo] true
BUILD SUCCESSFUL
Total time: 0 seconds
如何用ant判断一个文件是否存在
运行：
E:\automatize>ant -buildfile build2.xml
Buildfile: E:\automatize\build2.xml
unzip:
[echo] true
BUILD SUCCESSFUL
Total time: 0 seconds