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W3.JS 控制器


什么是控制器?

控制器是你编写的用于控制数据的函数。

使用自编写的控制器,你可以根据需要修改数据。

  • 转换为大写
  • 转换货币
  • 计算和汇总
  • 四舍五入值
  • 替换值
  • 根据值更改颜色
  • 任何其他你能编程的内容

控制器示例 1

你希望在显示数据之前将其转换为大写。

转换为大写

<script>
w3.getHttpObject("customers.js", myFunction);

function myFunction(myObject) {
  var i;
  var myArray = myObject.customers;
  for (i = 0; i < myArray.length; i++) {
    myArray[i]["CustomerName"] =
    myArray[i]["CustomerName"].toUpperCase();
  }
  w3.displayObject("id01", myObject);
}
</script>
亲自尝试 » 带 CSS »

控制器示例 2

汇总价格

<script>
w3.getHttpObject("cd_catalog.js", myFunction);

function myFunction(myObject) {
  var i, total = 0;
  var myArray = myObject.cd;
  for (i = 0; i < myArray.length; i++) {
    total += Number(myArray[i].price);
  }
  myObject.total = total.toFixed(2);
  w3.displayObject("id01", myObject);
}
</script>
亲自尝试 » 带 CSS »

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