dx命令详解

usage:

dx --dex [--debug] [--verbose] [--positions=<style>] [--no-locals]
  [--no-optimize] [--statistics] [--[no-]optimize-list=<file>] [--no-strict]
  [--keep-classes] [--output=<file>] [--dump-to=<file>] [--dump-width=<n>]
  [--dump-method=<name>[*]] [--verbose-dump] [--no-files] [--core-library]
  [--num-threads=<n>]
  [<file>.class | <file>.{zip,jar,apk} | <directory>] ...
    Convert a set of classfiles into a dex file, optionally embedded in a
    jar/zip. Output name must end with one of: .dex .jar .zip .apk. Positions
    options: none, important, lines.
  dx --annotool --annotation=<class> [--element=<element types>]
  [--print=<print types>]
  dx --dump [--debug] [--strict] [--bytes] [--optimize]
  [--basic-blocks | --rop-blocks | --ssa-blocks | --dot] [--ssa-step=<step>]
  [--width=<n>] [<file>.class | <file>.txt] ...
    Dump classfiles, or transformations thereof, in a human-oriented format.
  dx --junit [-wait] <TestClass>
    Run the indicated unit test.
  dx --find-usages <file.dex> <declaring type> <member>
    Find references and declarations to a field or method.
    declaring type: a class name in internal form, like Ljava/lang/Object;
    member: a field or method name, like hashCode
  dx -J<option> ... <arguments, in one of the above forms>
    Pass VM-specific options to the virtual machine that runs dx.
  dx --version
    Print the version of this tool (1.7).
  dx --help
    Print this message.
           

利用dx.bat脚本将.class文件编译成class.dex文件：