if 语句的用法

Question

请问各位大侠，
例如下面的用C写的程序
if a>b
{
   c=a+b;
   d=a-b;
else 
{
   c=a-b;
   d=a+b;
}
改成delphi怎么写？
    

Answer 1

if (a>b) then
  begin
    c:=a+b;
    d:=a-b;
  end
else
   begin
     c:=a-b;
     d:=a+b;
   end;

Answer 2

if   (a> b ) then
begin 
      c=a+b; 
      d=a-b; 
end
else   
begin
      c=a-b; 
      d=a+b; 
end;

Answer 3

if       (a>   b   )   then
begin  
            c=a+b;  
            d=a-b;  
end
else      
begin
            c=a-b;  
            d=a+b;  
end; 

Answer 4

大括号用 begin  end来代替