lt45.c

programs in <C program design>

# include "stdio.h"
void main( ) 
{                  
char s;
int a,b,c;
scanf ("%d,%d",&a,&b);
c=max(a,b);          /* 调用一个函数语句（其中a和b是实参）*/
printf (" max ia %d",c);
scanf("%c",&s);
}
max (x,y) /* 函数定义开始（函数名为max，指定两个形参x和y）*/
int x,y;
{ int z;
z=x>y? x: y;
return (z);
}