how to show code like this

[dlcomplete]

Assalam-O-Walaikum,
Hope all members will be fine i want to know how to show code like this in image below:
View attachment 13079
Thanks,
Allah Hafiz

 

[remember]

i think we have use some sort of bb code..
i will try to find it..

 

[befriend]

W/salam nice question dude pls some budy give the answer:d

 

[zero061099]

what with the numbered lines? That would be a editing program like Edit+