ภาษาซี คำสั่ง while, do...while, for

Hello All, Greetings to Land of Smiles people. I need one help from any one of you .Could you please help me ? When I am in changrai with my girl friend , We went to the Beauty and Barber Saloon shop

I will do a research for this topic, so please you help me for explain how different for these one. It's ok if you can explain me in Thai. Thank you.

my lastest window updated pim thai mai dai normally i press esc for changing the language, but now i pressed it's only show ` i have no idea what to do. pls help me!