uniapp 实现一个推算四柱的源码

四柱推算是根据一个人的出生年、月、日、时，推算出其对应的八字。在实现这个功能时，需要用到一些农历和天干地支相关的知识。

下面是一个基于uniapp实现的简单的四柱推算的代码示例：

<template>
  <view class="content">
    <view class="input-group">
      <text>年份：</text>
      <input type="number" v-model="year" />
    </view>
    <view class="input-group">
      <text>月份：</text>
      <input type="number" v-model="month" />
    </view>
    <view class="input-group">
      <text>日期：</text>
      <input type="number" v-model="day" />
    </view>
    <view class="input-group">
      <text>出生时刻：</text>
      <input type="number" v-model="hour" />
    </view>
    <view class="result">
      <text>八字推算结果：{{bazi}}</text>
    </view>
    <button @click="computeBazi">计算八字</button>
  </view>
</template>

<script>
export default {
  data() {
    return {
      year: "",
      month: "",
      day: "",
      hour: "",
      bazi: "",
    };
  },
  methods: {
    computeBazi() {
      // 根据输入的出生年月日时，计算八字
      // 这里仅为示例，实现方式可能并不准确
      const tgdz = [
        "甲子",
        "乙丑",
        "丙寅",
        "丁卯",
        "戊辰",
        "己巳",
        "庚午",
        "辛未",
        "壬申",
        "癸酉",
        "甲戌",
        "乙亥",
        "丙子",
        "丁丑",
        "戊寅",
        "己卯",
        "庚辰",
        "辛巳",
        "壬午",
        "癸未",
        "甲申",
        "乙酉",
        "丙戌",
        "丁亥",
        "戊子",
        "己丑",
        "庚寅",
        "辛卯",
        "壬辰",
        "癸巳",
        "甲午",
        "乙未",
        "丙申",
        "丁酉",
        "戊戌",
        "己亥",
        "庚子",
        "辛丑",
        "壬寅",
        "癸卯",
        "甲辰",
        "乙巳",
        "丙午",
        "丁未",
        "戊申",
        "己酉",
        "庚戌",
        "辛亥",
        "壬子",
        "癸丑",
        "甲寅",
        "乙卯",
        "丙辰",
        "丁巳",
        "戊午",
        "己未",
        "庚申",
        "辛酉",
        "壬戌",
        "癸亥",
      ];
      const tg = ["甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"];
      const dz = [
        "子",
        "丑",
        "寅",
        "卯",
        "辰",
        "巳",
        "午",
        "未",
        "申",
        "酉",
        "戌",
        "亥",
      ];
      const year = parseInt(this.year);
      const month = parseInt(this.month);
      const day = parseInt(this.day);
      const hour = parseInt(this.hour);

      const startYear = 1900;
      const tgdzStartIndex = 6; // 1900年的天干地支起始索引
      const monthDays = [
        31,
        28 + (year % 4 === 0 && year % 100 !== 0 ? 1 : 0),
        31,
        30,
        31,
        30,
        31,
        31,
        30,
        31,
        30,
        31,
      ];

      let days = 0;
      for (let i = startYear; i < year; i++) {
        days += 365 + (i % 4 === 0 && i % 100 !== 0 ? 1 : 0);
      }
      for (let i = 0; i < month - 1; i++) {
        days += monthDays[i];
      }
      days += day - 1;

      let hourIndex = Math.floor((hour + 1) / 2) - 1;
      let baziIndex = (days + hourIndex + tgdzStartIndex) % 60;
      let tgIndex = baziIndex % 10;
      let dzIndex = baziIndex % 12;

      this.bazi = tg[tgIndex] + dz[dzIndex];
    },
  },
};
</script>

<style>
.content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.input-group {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.result {
  margin-top: 20px;
}

button {
  margin-top: 20px;
  background-color: #409eff;
  color: #fff;
  border: none;
  padding: 10px;
  border-radius: 5px;
}
</style>

这段代码实现了四柱推算的基本功能，具体的计算方法可能并不准确，仅供参考。在这个示例中，我们通过输入年份、月份、日期和出生时刻来推算八字，并将结果显示在页面上。