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Convert vue amount to Chinese

May 18, 2023 am 09:05 AM

Vue是一种基于JavaScript的框架,用于构建用户界面。在Web开发中,处理金额转化为中文是一种常见的需求。本文将介绍如何在Vue中实现金额转化为中文的功能。

Vue中使用JS实现金额转化为中文的方法

在Vue中,我们可以使用JavaScript实现将金额转化为中文的功能。以下是一段用JavaScript实现的金额转中文的代码:

/**
 * 将数字转化为中文大写金额
 * @param {Number} n 需要转换的金额 
 * @return {String} 返回转换后的中文大写金额 
 */
function amountToChinese(n) {
    if (!/^(0|[1-9]d*)(.d+)?$/.test(n)) {
        return "";
    }
    var unit = "仟佰拾亿仟佰拾万仟佰拾圆角分",
        str = "";
    n += "00";
    var p = n.indexOf('.');
    if (p >= 0) {
        n = n.substring(0, p) + n.substr(p+1, 2);
    }
    unit = unit.substr(unit.length - n.length);
    for (var i=0; i < n.length; i++) {
        str += "零壹贰叁肆伍陆柒捌玖".charAt(n.charAt(i)) + unit.charAt(i);
    }
    return str.replace(/零(仟|佰|拾|角)/g, "零")
              .replace(/(零)+/g, "零")
              .replace(/零(万|亿|圆)/g, "$1")
              .replace(/(亿)万|壹(拾)/g, "$1$2")
              .replace(/^圆零?|零分/g, "")
              .replace(/圆$/g, "圆整");
}
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以上代码实现了将任意数字转换为中文大写金额的功能,例如:

amountToChinese(1000000.01)
//返回 "壹佰万零壹分"
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在Vue中使用金额转化为中文的方法

Vue中,我们可以在组件的计算属性中使用上述JavaScript代码,将金额转化为中文大写。以下是一个Vue组件实现的例子:

<template>
  <div>
    <input type="number" v-model="amount">
    <p>转换结果:{{ amountToChinese }}</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      amount: 0,
    }
  },
  computed: {
    amountToChinese() {
      const n = Number(this.amount)
      const unit = "仟佰拾亿仟佰拾万仟佰拾圆角分"
      let str = ""
      if (!/^(0|[1-9]d*)(.d+)?$/.test(n)) {
        return "无效金额"
      }
      n += "00"
      let p = n.indexOf('.')
      if (p >= 0) {
        n = n.substring(0, p) + n.substr(p+1, 2)
      }
      const united = unit.substr(unit.length - n.length)
      for (let i = 0; i < n.length; i++) {
        str += "零壹贰叁肆伍陆柒捌玖".charAt(n.charAt(i)) + united.charAt(i)
      }
      return str.replace(/零(仟|佰|拾|角)/g, "零")
                .replace(/(零)+/g, "零")
                .replace(/零(万|亿|圆)/g, "$1")
                .replace(/(亿)万|壹(拾)/g, "$1$2")
                .replace(/^圆零?|零分/g, "")
                .replace(/圆$/g, "圆整")
    }
  }
}
</script>
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在上述代码中,我们使用了Vue的计算属性,将原始的金额输入框的值转化为中文大写的金额,并在Vue模板中渲染出来。

总结

在Vue开发中,我们可以使用JavaScript中封装好的各种函数库,也可以自行编写JavaScript代码实现所需的功能。本文中,我们通过一个简单的Vue组件,介绍了如何使用JavaScript将金额转化为中文大写金额,并使用Vue的计算属性,将中文大写金额渲染到页面上。开发过程中如果遇到问题,建议参考Vue官方文档或相关开发者社区的解决方案。

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