ru he chuang jian: chang du zhuan huan qi

xue xí rú he shi yong HTML he JavaScript chuang jian chang du zhuan huan qi

chuang jian chang du zhuan huan qi

chuang jian yi ge shu ru yuan su, tai na neng jiang yi ge chang du jili juan zhuan huan wei qita chang du jili juan

di yi bu - tian jia HTML：

shi li - shi ft huan nuan wei mi

<p>
  <label>Feet</label>
  <input id="inputFeet" type="number" placeholder="Feet"
  oninput="lengthConverter(this.value)" onchange="lengthConverter(this.value)">
</p>
<p>cm: <span id="outputMeters"></span></p>

di er bu - tian jia JavaScript：

shi li - shi ft huan nuan wei mi

/* dang shu ru shu zi jian shou dao shu ru shi, jiang zhi zhong huan wei mi */
function lengthConverter(valNum) {
  document.getElementById("outputMeters").innerHTML = valNum / 3.2808;
}

zishen shi yi yi

cong ft zhuan huan wei qi ta jili juan

xia biao zhanshi rú he cong ft zhuan huan wei qi ta chang du jili juan

tan mi zuo zhuan wei qi ta jili juan

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