关于爬取抖音遇到时间格式不统一解决

问题

今天在做抖音时候需要获取时间，时间格式参差不一：

解决

function formatDateString(input) {

    let currentDate = new Date(); // 当前日期
    let year = "" + currentDate.getFullYear(); // 年份
    let month = "" + (currentDate.getMonth() + 1); // 月份（注意：月份从0开始，所以要加1）
    let day = "" + currentDate.getDate(); // 日期

    if (input.includes("周前")) {
        // 字符串中包含周的情况
        let weekAgo = parseInt(input); // 提取周数
        let targetDate = new Date(year, month - 1, day - weekAgo * 7); // 计算目标日期
        let targetMonth = "" + (targetDate.getMonth() + 1);
        let targetDay = "" + targetDate.getDate();
        return targetMonth.padStart(2, "0") + "月" + targetDay.padStart(2, "0") + "日";
    } else if (input.includes("天前")) {
        // 字符串中包含天前的情况
        let daysAgo = parseInt(input);
        let targetDate = new Date(year, month - 1, day - daysAgo); // 计算目标日期
        let targetMonth = "" + (targetDate.getMonth() + 1);
        let targetDay = "" + targetDate.getDate();
        return targetMonth.padStart(2, "0") + "月" + targetDay.padStart(2, "0") + "日";
    } else if (input.includes("小时前")) {
        // 字符串中包含小时前的情况
        let hoursAgo = parseInt(input);
        let targetDate = new Date(year, month - 1, day, 0, 0, 0); // 当天的凌晨
        targetDate.setHours(targetDate.getHours() - hoursAgo); // 计算目标日期
        let targetMonth = "" + (targetDate.getMonth() + 1);
        let targetDay = "" + targetDate.getDate();
        return targetMonth.padStart(2, "0") + "月" + targetDay.padStart(2, "0") + "日";
    } else if (input.includes("分钟前")) {
        let minutesAgo = parseInt(input);
        let targetDate = new Date(year, month - 1, day, 0, 0, 0); // 当天的凌晨
        targetDate.setMinutes(targetDate.getMinutes() - minutesAgo); // 计算目标日期
        let targetMonth = "" + (targetDate.getMonth() + 1);
        let targetDay = "" + targetDate.getDate();
        return targetMonth.padStart(2, "0") + "月" + targetDay.padStart(2, "0") + "日";
    } else {

        return input;

    }

}

console.log(formatDateString("2天前"))
console.log(formatDateString("1周前"))
console.log(formatDateString("3分钟前"))
console.log(formatDateString("12小时前"))
console.log(formatDateString("21小时前"))

效果