#include<stdio.h>
void main()
{
int sex,diet,sport;
float hight,faHeight,moHeight;
char M,F,Y,N;
printf("please input sex,diet,sprot,faHeight,moHeight\n");
scanf("%c%c%c%f%f",&sex,&diet,&sport,&faHeight,&moHeight);
if(sex=='M')
{hight=(faHeight+moHeight)*0.54; }
else
if(sex=='F')
{ hight=(faHeight*0.923+moHeight)*0.5;}
if(diet=='Y')
{hight=hight*(0.015);}
else
if(diet=='N')
{printf("No add hight\n");}
if(sport=='Y')
{hight=hight*(0.02);}
else
if(sport=='N')
{printf("No add hight\n");}
printf("hight=%f",hight);
getch();
}输出结果是0的，为什么啊，高手指点下，这个结果不正确的。

我帮你理了下程序排版.
#include<stdio.h>
void main()
{
int sex,diet,sport;
float hight,faHeight,moHeight;
char M,F,Y,N;
printf("please input sex,diet,sprot,faHeight,moHeight\n");
scanf("%c%c%c%f%f",&sex,&diet,&sport,&faHeight,&moHeight);
if(sex=='M')
{hight=(faHeight+moHeight)*0.54; }
else
if(sex=='F')
{ hight=(faHeight*0.923+moHeight)*0.5;}

if(diet=='Y')
{hight=hight*(0.015);}
else
if(diet=='N')
{printf("No add hight\n");}

if(sport=='Y')
{hight=hight*(0.02);}
else
if(sport=='N')
{printf("No add hight\n");}

printf("hight=%f",hight);
getch();
}

我运行了下一结果不是0,结果如下:
please input sex,diet,sprot,faHeight,moHeight
M Y Y 0.5 0.5
hight=2373324173956202510000000000000000.000000

hight+=hight*(0.02);
hight+=hight*(0.015);
这个你没加上就错了 你是
hight=hight*(0.02);
hight=hight*(0.015);
相当于height变成0.015倍了 你没加上去
还有height拼错了
还有你那些if用成这样啊 这样好像错了好多 你再仔细思考吧
如果改好像要改很多
其实我也是刚学的
这学期开始

对了 用结构会好点吧