如何使用For循环获取体重指数值？ [英] How Do I Use For Loop To Get A Body Mass Index Value?

问题描述

我正在尝试创建一个程序，在5千克间隙的for循环中计算体重指数。 BMI公式为：体重（kg）/身高（米平方）= BMI。这怎么样？这是我到目前为止的代码：



Console.Write（用米写高度：）;

double t1 = double.Parse（Console.ReadLine（））;

Console.Clear（）;



Console.Write（写入起点以kg为单位的重量：）;

double t2 = double.Parse（Console.ReadLine（））;

Console.Clear（）;



Console.Write（以kg为单位写重量终点：）;

double t3 = double.Parse（Console.ReadLine（））;

Console.Clear（）;



double i = t1;

double t1s = t1 * t1;

double BMI = t2 / t1s;



for（i = BMI; t2< = t3; i ++）

{

Console.WriteLine（i）;

t2 + = 5;

} Console.ReadKey（）;



我希望结果看起来像这样：

身高1,6米的BMI是：

体重| BMI

60 | 23.44

65 | 25.39

70 | 27.34

...跳至125（结束点）

125 | 48.83

我真的迷失了它是如何工作的，如果有人知道这怎么可行，请回答。

解决方案

也许它会帮助您可视化'for-loop如果您将其视为：

  （ double  currentWeight = startWeight; currentWeight <  = finalWeight; currentWeight = currentWeight + weightIncrement）
 {
  //  在此计算BMI  
  double  BMI = currentWeight / heightMetersSquared; 
 
  //  将当前结果写入控制台 
 Console.WriteLine （  BMI：{0} kg。= {1}，currentWeight，BMI）; 
} 

这通常可以不太正式写成：

  for （ double  cw = startWeight; cw <  = finalWeight; cw + = weightIncrement）
 {
  //  此处计算BMI  
  double  BMI = cw / heightMetersSquared; 
 
  //  将当前结果写入控制台 
 Console.WriteLine （  BMI：{0} kg。= {1}，cw，BMI）; 
} 

在几乎所有编程语言中找到的for循环结构的一个有用的助记符（记忆助手）是：从起始值到最终值的增量为。。

i'm trying to create a program that calculates Body mass index in a for loop with 5kg gaps. BMI formula is: weight(kg)/height(meters squared) = BMI. How would this work? this is the code i got so far:

Console.Write("Write your height in meters: ");
double t1 = double.Parse(Console.ReadLine());
Console.Clear();

Console.Write("Write starting point of weight in kg: ");
double t2 = double.Parse(Console.ReadLine());
Console.Clear();

Console.Write("Write ending point of weight in kg: ");
double t3 = double.Parse(Console.ReadLine());
Console.Clear();

double i = t1;
double t1s = t1 * t1;
double BMI = t2 / t1s;

for (i = BMI; t2 <= t3; i++)
{
Console.WriteLine(i);
t2 += 5;
} Console.ReadKey();

i want the result to look somewhat like this:
BMI for height 1,6m is:
weight | BMI
60 | 23.44
65 | 25.39
70 | 27.34
...skipping to 125(ending point)
125 | 48.83
i'm really lost in how this can work, if anyone knows how this could work please answer.

解决方案

Perhaps it would help you visualize what the 'for-loop does if you think of it as:

for (double currentWeight = startWeight; currentWeight <= finalWeight; currentWeight = currentWeight + weightIncrement)
{
    // calculate BMI here
     double BMI = currentWeight / heightMetersSquared;

    // write current results to Console
    Console.WriteLine("BMI: {0}kg. = {1}", currentWeight, BMI);
}

This could usually be written "less formally" as:

for (double cw = startWeight; cw <= finalWeight; cw += weightIncrement)
{
    // calculate BMI here
     double BMI = cw / heightMetersSquared;

    // write current results to Console
    Console.WriteLine("BMI: {0}kg. = {1}", cw, BMI);
}

A useful mnemonic (memorization helper) for the for-loop construct found in almost every programming language is: "from the start-value to the final-value by increments-of."

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