Where are my screenshots saved?

They're in your 《我的世界》 folder. Inside there look in "screenshots", copy the pictures to somewhere easy to find so 你 can post them easily so the orginal image doesn't get destroyed, and there 你 go! (p.s, I recomend getting into the 《我的世界》 folder though the texture pack folder. Its much easier then typing "%appdata%" evry time 你 want to 上传 a screenshot... :) )

Press Start
Type in %appdata%/.minecraft
Go into screenshots
Tada!

I have really no idea