I tryed to make running animation and then i messed up:
http://filz.us/Lhx
can you help me?

Looks like you have not made enough frames for it. How much is it? 4 frames for two footsteps?
Make some more frames in between to get a smooth flow. Like 6-7 single-framed or 4 double-framed.

i ll try again with some other tutorial.Looks like i screwed up with frames...I got a question...Can my weak PC do abit more FPS?

Yeah sure, why not. set it to 20 or 24.

Just testing:
http://filz.us/LhM
8 frames.

The motion between frames needs to be consistent, and I can't follow the motion of a single limb from one frame to the next. It doesn't make any sense, and you're rushing to the point where you can't even take the time to draw a decent looking stick figure.

It's a lack of effort and experience. Practice and you'll get better, we have plenty of tutorials and resources here. General Help is not the place to look for animation criticism, though, so don't continue posting your work here.

okay,but where should i post my work,practice?

http://www.filz.us/view/59775703-22b/

There you go. I made that especially for you. If you can't read my God awful handwriting then just pay close attention to the pictures.

^having him said that, you actually should learn something from this tutorial. If you don't then throw him up some questions, but don't ignore the tutorial.

thank you very much! :)

No flow is nothing but moving limbs in the same direction with the same movement all the way through. You don't want to animate a run loop and have one of the arms extended all the way out one frame, and then start to bend on the next frame, and then on the third or fourth frame have it extend out again.

When you animate a run the arms on the leaps extend out in front and behind the figure. As the figure is stepping they draw closer to the body and bend. One step with proper easing should take you about 8-12 frames

Remember the "Rule of Three". Minimum 3 frames for a step in a walk cycle (kinda also applies to anything else). In this case, the animation is a run cycle where 3 frames would look terrible and (4?)5-7 frames is common. You shouldn't be going much over seven, though but, obviously, this depends on your fps. Of course, raw frame count is not necessarily what makes an animation good, but, there is also importance in the frames being good themselves. Fluidity, Easing (Anticipation and follow through, spacing...) and the like should be aimed for, along with a bit of snap and of course impact. Those who want to practice this should use balls and stuff so that you don't have to worry about detail/the character and concentrate more on the actual movement (ghosting might work depending on the animator/animation). Good luck to all.

that's not a "rule", that'd be 4 steps per second at 12 FPS.

a brisk walk is about 2 steps per second. if you're using 12 FPS that's 6 frames per step. if you're using 20 FPS, it's 10 per step. it depends on your frame rate, using rules like those is just a good indication that you don't know what you're doing, and it'll show in your work.

Quote from Exilement

that's not a "rule", that'd be 4 steps per second at 12 FPS.

a brisk walk is about 2 steps per second. if you're using 12 FPS that's 6 frames per step. if you're using 20 FPS, it's 10 per step. it depends on your frame rate, using rules like those is just a good indication that you don't know what you're doing, and it'll show in your work.

Excuse me, sir. Please reread my post. I said MINIMUM, meaning at least. Of course, we all know very well 3 frames is too little for a good walk. This was more applicable back in the olden days with little 16x16 sprites, less processing power, and whatnot to avoid choppiness.