#include"stdio.h"
void main()
{   
                char name[10],sex;
            int age;
            double height,weight,bmi;
                while(1)
                {
                printf("体重质量指数（body mass index,简称BMI）\n");
        printf("体重指数=体重（千克）除以身高（米）的平方\n");
        printf("正常体重指数=18——25\n");
        printf("超重体重指数=25——30\n");
        printf("轻度肥胖体重指数>30\n");
        printf("中度肥胖体重指数>35\n");
        printf("重度肥胖体重指数>40\n");
        printf("*************以下是输入信息***********\n");
        printf("姓名：");
        gets (name);
        printf("性别：");
        scanf("%c",&sex);
        printf("年龄:");
        scanf("%d",&age);
        printf("体重（千克）：");
        scanf("%lf",&weight);
        printf("身高（米）：");
        scanf("%lf",&height);
        bmi=weight/(height*height);
        printf("\n*********以下是输出信息*********\n");
        printf("*  姓名：%6s             *\n",name);
        printf("*  性别:%c              *\n",sex);
        printf("*  年龄:%d              *\n",age);
        printf("*  体重:%.2f千克        *\n",weight);
        printf("*  身高:%.2f米          *\n",height);
        printf("*  你的体重指数:%.2lf   *\n",bmi);
        printf("************************\n");
        getchar();
        getchar();
           }      
}
对于以上代码 能运行到姓名 性别后 就出现错误 为啥会这样