我现在正在练习c编程,并且制作了一些BMI计算器。它工作的很好,但是当用户输入字符串或字符的第一个scanf
发送数据浮动变量'重量'。之后它通过了所有scanf
,并向我显示出Your BMI is 1.#J
的错误。如何解决这个错误?这是我的代码。当用户在scanf中输入字符串并保持浮点型变量时获取错误
#include <stdio.h>
int main()
{
float weight;
float height;
float result;
float c_height;
printf("Enter your weight as kilogram...\n\n> ");
scanf("%f",&weight);
//If user input char or string , it passed all thing and showed error.
printf("\nEnter your height as centimetres...\n\n> ");
scanf("%f",&height);
c_height=(height/100)*(height/100);
result=weight/c_height;
if(result<18.50)
{
printf("\nYour BMI is %.2f\n\n",result);
printf("You are underweight! Try to eat more frequently\n\n");
printf("Thank you for using my program!\n\n");
}else if(result>=18.50 && result<22.90)
{
printf("\nYour BMI is %.2f\n\n",result);
printf("You are healthy! Keep eating healthy\n\n");
printf("Thank you for using my program!\n\n");
}else if(result>=22.90 && result<24.90)
{
printf("\nYour BMI is %.2f\n\n",result);
printf("You are a little overweight! Avoid eating some fat and an oil\n\n");
printf("Thank you for using my program!\n\n");
}else if(result>=24.90 && result<29.90)
{
printf("\nYour BMI is %.2f\n\n",result);
printf("You are overweight! Avoid eating fat and do exercise often\n\n");
printf("Thank you for using my program!\n\n");
}else if(result>=29.90)
{
printf("\nYour BMI is %.2f\n\n",result);
printf("You are obese! Do exercise everyday and eat carefully!\n\n");
printf("Thank you for using my program!\n\n");
}else
{
printf("Error occured!!");
}
return 0;
}
为什么进入焦炭scanf函数后或字符串,当有人要求重量,并在浮动[格式说明符](https://www.le.ac.uk/users/rjm1/cotter/page_30.htm) – wrangler