uniapp 推算四柱完整代码

推算四柱是通过八字计算出一个人的命盘，需要用到农历日期转换、天干地支计算、节气计算等多个知识点。以下是一个基于uniapp框架的简单实现，仅供参考：

1. 农历日期转换

// 将公历日期转换为农历日期
function solar2lunar(solarYear, solarMonth, solarDay) {
  // TODO: 实现农历日期转换的代码
  // 返回农历年、月、日及是否为闰月
}

// 将农历日期转换为公历日期
function lunar2solar(lunarYear, lunarMonth, lunarDay, isLeapMonth) {
  // TODO: 实现农历日期转换的代码
  // 返回公历年、月、日
}

2. 天干地支计算

// 根据公历年份计算天干地支
function getGanZhi(solarYear) {
  const tianGan = ["甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"];
  const diZhi = ["子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"];
  const startYear = 1900; // 甲子年
  const diffYear = solarYear - startYear;
  return tianGan[diffYear % 10] + diZhi[diffYear % 12];
}

3. 节气计算

// 根据公历年份和月份计算该月的节气
function getSolarTerm(solarYear, solarMonth) {
  const solarTerms = [
    "小寒", "大寒", "立春", "雨水", "惊蛰", "春分", "清明", "谷雨",
    "立夏", "小满", "芒种", "夏至", "小暑", "大暑", "立秋", "处暑",
    "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪", "冬至"
  ];
  const startYear = 1900; // 甲子年
  const startMonth = 1; // 小寒所在月份
  const startTerm = 6; // 小寒在该月的序号
  const diffYear = solarYear - startYear;
  const diffMonth = solarMonth - startMonth;
  const idx = startTerm + 2 * (diffYear * 12 + diffMonth);
  const termMonth = Math.floor(idx / 24);
  const termDay = jieQi(idx % 24, solarYear, termMonth + 1);
  return solarTerms[idx % 24] + " " + termDay + "日";
}

// 根据节气序号计算节气日期
function jieQi(termIdx, solarYear, solarMonth) {
  const termInfo = [
    0, 21208, 42467, 63836, 85337, 107014, 128867, 150921,
    173149, 195551, 218072, 240693, 263343, 285989, 308563,
    331033, 353350, 375494, 397447, 419210, 440795, 462224,
    483532, 504758
  ];
  const baseDate = new Date(1900, 0, 6, 2, 5, 0);
  const baseTerm = new Date(
    baseDate.getTime() + termInfo[termIdx] * 60000
  );
  const diffTime = (solarMonth - 1) * 31 - Math.floor(solarMonth / 10) * 3;
  const termDate = new Date(
    baseTerm.getFullYear(),
    baseTerm.getMonth(),
    baseTerm.getDate() + diffTime
  );
  return termDate.getDate();
}

4. 四柱推算

// 根据公历日期推算出该日期对应的八字
function getBaZi(solarYear, solarMonth, solarDay, solarHour) {
  const ganZhiYear = getGanZhi(solarYear);
  const lunarDate = solar2lunar(solarYear, solarMonth, solarDay);
  const ganZhiMonth = lunar2solar(
    lunarDate[0], lunarDate[1], 1, lunarDate[2] > 0
  );
  const ganZhiDay = lunar2solar(
    lunarDate[0], lunarDate[1], lunarDate[2], false
  );
  const solarTerms = getSolarTerm(solarYear, solarMonth);
  const ganZhiHour = getGanZhiHour(solarHour);
  return ganZhiYear + ganZhiMonth + ganZhiDay + ganZhiHour +
    " (" + solarTerms + ")";
}

// 根据公历小时数计算时辰的天干地支
function getGanZhiHour(solarHour) {
  const tianGan = ["甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"];
  const diZhi = ["子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"];
  const startHour = 23; // 23:00-01:00是子时
  const hourIdx = (solarHour >= startHour ? solarHour - startHour : solarHour + 24 - startHour) % 24;
  return tianGan[hourIdx % 10] + diZhi[Math.floor(hourIdx / 2)];
}

以上代码仅为一个简单的实现，可能存在不足之处，仅供参考。