是否可以在同一条线上中断？

Question

Normal way:

switch(whaa){

   case 1:
     if(condition){
       xxx();
       break;
     }

}

but can I break in the same line as my code to avoid the { } ?

Like

switch(whaa){

   case 1:
     if(condition)
       break xxx();

}

this doesn't work obviously, but perhaps there's a different way?

Answer 1

Without the inclusion of brackets, only the first statement gets executed. So the second statement will execute outside of if .

You could however use comma operator to make it a single statement and hence remove the usage of brackets. However, you must focus on quality over quantity .

 
 
 
  
  if(condition) xxx(), break;
 
  

What the above does is evaluate to break after executing xxx() in the way.

As pointed by thefourtheye, break is a statement and hence can't be used as an expression using comma operator.

So it has to be used as an independent statement, so the brackets cannot be removed.