The difference between $write and $display in SystemVerilog

$display() function     

$display Is a normal display function （ Yes , I think it's more like a function , It's not like a task . Be similar to C/C++、matlab and python And the corresponding console print function ）, It is executed instantly wherever it is called . let me put it another way , When you encounter it in the process of program execution, execute it immediately .

$write() function         

$write And $display Almost the same , The only difference is that the latter defaults to line feed , The former does not . So when you need to display the printed content of the statement called many times on the same line , That is, we should use $write The place of .

        If you call... Without any parameters $display() Words , It is equivalent to a simple line feed , Call... Without any parameters $write() Nothing will happen .