Application of AS3 breakpoint continuous transmission

Objective
Use the Filereference.load () method supported by FP10 to get local data. Then use ByteArray to divide the data into small chunks of the specified size. Upload separately
.. To achieve the function of the breakpoint continued to pass.

Analysis
Step one: Load the file (Filereference,filereference.load ())
Step two: Request the amount of uploaded data to the server (file ID, urlloader)
Step three: Start uploading from the returned data location.

Effect

PS: Because the server only uses the name + size for identification. So upload the same file after uploading is prompted to upload, another space limit ~ only to keep the last 10 files ~