#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!CDarkGreen #!N  #!Rall991 
(1) Define the module's function, inputs, and outputs #!N #!EC #!N 
#!N The Hello module appends an input string to "hello." The 
resulting combination is the module's output. If the input string is 
 #!F-adobe-times-bold-r-normal--18*   NULL #!EF , the default output is "hello world." #!N 
#!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N  #!Lmbmdf,dxall993 h (2) Create a module description file  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   
#!N 
