i need help writing code to make a sphere jump which will work with my code i wrote

can somebody please write some cs the makes a ball move and jump coz I've written mine and done everything for it it was working but then it just stopped working

 

Define 'stopped working'. Also, there are probably hundreds of tutorials on basic stuff like this. Did you look some up, for example on youtube? I honestly doubt it.
Given how frequently you asked very basic questions about errors and spelling mistakes over the past 2 or so days, i would recommend you to start at the very basics and learn coding. There are some amazing free tutorials out there, like this one:

 

i have been watching it but on ep06 after saving it i got error CS0117: 'KeyCode' does not contain a definition for 'space'

 

I dont want to sound rude, but over half of your threads involved you asking about some error with the solution being that you introduced a typo. It's the same here. I'll let you fix it yourself, but please pay more attention to spelling, including capitalization in the future. If something is named 'Xyz', then that's not the same as 'xyz' or 'xYz', as those could even be their own variable names and all exist at the same time.