<input type="text" name="StartAssessYearMon1" readonly id="StartAssessYearMon1" autocomplete="off" class="layui-input"> laydate.render({ elem:'#StartAssessYearMon1', type:'date', format:'yyyy-MM-dd', range:'至', max:countdownSunday(), value:countdown(), }） function countdown() { var today = new Date(); var weekday = today.getDay(); var monday; var sunday; if (weekday == 0) { monday = new Date(1000 * 60 * 60 * 24 * (weekday - 6) + today.getTime()); } else { monday = new Date(1000 * 60 * 60 * 24 * (1 - weekday) + today.getTime()); } if (weekday == 0) { sunday = today; } else { sunday = new Date(1000 * 60 * 60 * 24 * (7 - weekday) + today.getTime()); } var month = monday.getMonth() + 1; if (month < 10) { month = "0" + month; } var day1 = monday.getDate(); if (day1 < 10) { day1 = "0" + day1; } var start = monday.getFullYear() + '-' + month + '-' + day1; var month2 = sunday.getMonth() + 1; if (month2 < 10) { month2 = "0" + month2; } var day2 = sunday.getDate(); if (day2 < 10) { day2 = "0" + day2; } var end = sunday.getFullYear() + '-' + month2 + '-' + day2; return start+'至'+end; }显示错误日期格式不合法必须遵循下述格式：yyyy-MM-dd 至yyyy-MM-dd 以为你重置
理解问题<input type="text" name="StartAssessYearMon1" readonly id="StartAssessYearMon1" autocomplete="off" class="layui-input"> laydate.render({ elem:'#StartAssessYearMon1', type:'date', format:'yyyy-MM-dd', range:'至', max:countdownSunday(), value:countdown(), }） function countdown() { var today = new Date(); var weekday = today.getDay(); var monday; var sunday; if (weekday == 0) { monday = new Date(1000 * 60 * 60 * 24 * (weekday - 6) + today.getTime()); } else { monday = new Date(1000 * 60 * 60 * 24 * (1 - weekday) + today.getTime()); } if (weekday == 0) { sunday = today; } else { sunday = new Date(1000 * 60 * 60 * 24 * (7 - weekday) + today.getTime()); } var month = monday.getMonth() + 1; if (month < 10) { month = "0" + month; } var day1 = monday.getDate(); if (day1 < 10) { day1 = "0" + day1; } var start = monday.getFullYear() + '-' + month + '-' + day1; var month2 = sunday.getMonth() + 1; if (month2 < 10) { month2 = "0" + month2; } var day2 = sunday.getDate(); if (day2 < 10) { day2 = "0" + day2; } var end = sunday.getFullYear() + '-' + month2 + '-' + day2; return start+'至'+end; }显示错误日期格式不合法必须遵循下述格式：yyyy-MM-dd 至yyyy-MM-dd 以为你重置
已完成理解「<input type="text" name="StartAssessYearMon1" readonly id="StartAssessYearMon1" autocomplete="off" class="layui-input"> laydate.render({ elem:'#StartAssessYearMon1', type:'date', format:'yyyy-MM-dd', range:'至', max:countdownSunday(), value:countdown(), }） function countdown() { var today = new Date(); var weekday = today.getDay(); var monday; var sunday; if (weekday == 0) { monday = new Date(1000 * 60 * 60 * 24 * (weekday - 6) + today.getTime()); } else { monday = new Date(1000 * 60 * 60 * 24 * (1 - weekday) + today.getTime()); } if (weekday == 0) { sunday = today; } else { sunday = new Date(1000 * 60 * 60 * 24 * (7 - weekday) + today.getTime()); } var month = monday.getMonth() + 1; if (month < 10) { month = "0" + month; } var day1 = monday.getDate(); if (day1 < 10) { day1 = "0" + day1; } var start = monday.getFullYear() + '-' + month + '-' + day1; var month2 = sunday.getMonth() + 1; if (month2 < 10) { month2 = "0" + month2; } var day2 = sunday.getDate(); if (day2 < 10) { day2 = "0" + day2; } var end = sunday.getFullYear() + '-' + month2 + '-' + day2; return start+'至'+end; }显示错误日期格式不合法必须遵循下述格式：yyyy-MM-dd 至yyyy-MM-dd 以为你重置」
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您提供的 JavaScript 代码段中存在一些逻辑错误，导致日期格式不正确。以下是修改后的代码，它将正确地计算从当前日期的周一到周日的日期范围，并以 yyyy-MM-dd 至 yyyy-MM-dd 的格式返回：
function countdown() {
var today = new Date();
var weekday = today.getDay(); // 获取当前是周几，0 表示周日，1 表示周一，以此类推
var start; // 周一的日期
var end; // 周日的日期
// 计算周一的日期
if (weekday === 0) {
// 如果今天是周日，周一就是今天
start = today;
} else {
// 否则，周一是今天减去当前的周几数
start = new Date(today - weekday * 24 * 60 * 60 * 1000);
}
// 计算周日的日期
end = new Date(start.getTime() + 6 * 24 * 60 * 60 * 1000); // 周一加上6天
// 格式化日期
function formatDate(date) {
var year = date.getFullYear();
var month = date.getMonth() + 1;
var day = date.getDate();
return [year, month < 10 ? '0' + month : month, day < 10 ? '0' + day : day].join('-');
}
var startFormatted = formatDate(start);
var endFormatted = formatDate(end);
return startFormatted + ' 至 ' + endFormatted;
}
// 调用 laydate.render 时使用 countdown 函数
laydate.render({
elem: '#StartAssessYearMon1',
type: 'date',
format: 'yyyy-MM-dd',
range: '至',
max: countdownSunday(), // 假设 countdownSunday 是一个返回日期的函数
value: countdown() // 使用 countdown 函数获取当前周一到周日的日期范围
});
请注意，countdownSunday 函数在您的代码中没有定义，我假设它是一个返回日期的函数。如果它不是，您需要提供正确的实现或删除对它的引用。此外，laydate.render 函数的 max 参数应该是一个日期对象或一个返回日期对象的函数，而不是一个字符串。如果 countdownSunday 需要返回一个日期对象，您需要相应地修改它。
