你如何比较Ant中的字符串？

Question

In ant 1.6x the condition is never true despite app.get.method=download, why doesnt this work?

 <target name="-get-method">
    <condition property="do.download">
        <equals arg1="${app.get.method}" arg2="download" />
    </condition>  
    <echo message="${do.download}" />
  </target> 

Answer 1

Properties in ant are global and immutable. You have probably already set the do.download property somewhere else.

Trying printing the value of do.download BEFORE the condition element it will probably already be "false".