[Solved] Can't find the source codes of Minecraft

[szszss]

Hi guys. I followed PlatonCraft's tutorial(http://www.minecraftforge.net/forum/index.php/topic,15314.0.html) to set up a development environment. It looks fine, but I can't find the source codes of Minecraft. LexManos said that it can be found in the minecraft jar in the referenced libraries, but I found nothing but bytecodes in forge-1.7.2-xxx-mcp.jar. Is there any help?

Btw, can someone tell me the differences of setupCIWorkspace, setupDecompWorkspace and setupDevWorkspace?

[szszss]

Well, the source codes appeared after I cleaned and reset whole development environment, although there are tons of field_xxx and func_xxx.