public async Task <IActionResult> Edit(int id, [Bind("ID,user_id,create_time,height,weight,age,waist,bfp")] BodyAbility bodyAbility)
{
if (id != bodyAbility.ID)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(bodyAbility);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BodyAbilityExists(bodyAbility.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(bodyAbility));
}
public BodyList()
{
alllist = new List <BodyAbility>();
lastlist = new BodyAbility();
time = new List <string>();
bfp = new List <string>();
bmi = new List <string>();
}
public async Task <IActionResult> Create([Bind("user_id,height,weight,age,waist,")] BodyAbility bodyAbility)
{
bodyAbility.create_time = DateTime.Now;
//计算体脂率的公式
bodyAbility.bfp = (double)(bodyAbility.waist * 0.74 - (bodyAbility.weight * 0.082 + 44.74)) / bodyAbility.weight;
bodyAbility.bfp = bodyAbility.bfp * 100;
//计算BMI的公式
bodyAbility.bmi = (double)bodyAbility.weight / (bodyAbility.height * bodyAbility.height);
_context.Add(bodyAbility);
await _context.SaveChangesAsync();
result res = new result();
//系统建议的代码，仿照这个代码，在别的类中，同样的位置，试着自己编写
res.ans = "";
if (res.bfp < 15)
{
res.ans += "您的体脂率比较低,建议多摄入脂肪;";
}
else if (res.bfp >= 15 && res.bfp <= 18)
{
res.ans += "您的体脂率正常";
}
else
{
res.ans += "您的体脂率过高，注意多锻炼";
}
if (res.bmi < 18.5)
{
res.ans += "您的BMI指数偏低，需要多锻炼身体";
}
else if (res.bmi >= 18.5 && res.bmi < 23.9)
{
res.ans += "您的BMI指数正常";
}
else
{
res.ans += "您的BMI指数偏高，需要多锻炼";
}
res.bfp = bodyAbility.bfp;
res.bmi = bodyAbility.bmi;
JsonResult result = Json(res);
return(result);
}