C语言F/C温度转换

#include
int main ()
{
	char a;
	float temperature;
	printf("请输入温度类型（F/C）及温度：n");
	scanf("%c，%f",&a,&temperature);
	if(a=='C')
	{
		temperature=(temperature*9/5)+32;
		printf("The Fahrenheit is%.2fn",temperature);
	}
		if(a=='F')
	{
		temperature=(temperature-32)*5/9;
		printf("The Centigrade is%.2fn",temperature);
	}
   return 0;
 }