只是为了一些新的/不同的东西-你可以使用php来做它。

<?php
$todayDate = date('Y-m-d', strtotime('today'));
echo "<input type='date' value='$todayDate' />";
?>

即使过了这么久，这也能帮到别人。这是一个简单的JS解决方案。

JS

  let date = new Date();
  let today = date.toISOString().substr(0, 10);
  //console.log("Today: ", today);//test
  document.getElementById("form-container").innerHTML =
    '<input type="date" name="myDate" value="' + today + '" >';//inject field

HTML

 <form id="form-container"></form>

类似的解决方案也适用于Angular，无需任何额外的库来转换日期格式。对于Angular(由于通用组件代码，代码被缩短了):

//so in myComponent.ts 
//Import.... @Component...etc...
date: Date = new Date();
today: String; //<- note String
//more const ...
export class MyComponent implements OnInit {
   //constructor, etc.... 
   ngOnInit() {
      this.today = this.date.toISOString().substr(0, 10);
   }
}
//so in component.html 
<input type="date" [(ngModel)]="today"  />

new Date().getFullYear()+"-"+ ((parseInt(new Date().getMonth())+1+100)+"").substring(1)

<input id="datePicker" type="date" />

美元(文档)。Ready (function() { var now = new Date(); var day = ("0" + now.getDate()).slice(-2); var月=(“0”+ (now.getMonth () + 1)) .slice (2); 今天var = now.getFullYear() +“-”+(月)+“-”+(一天); $ (' # datePicker ') .val(今天); })； < script src = " https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js " > < /脚本> <input id="datePicker" type="date" />

HTML

<input type="date" id="theDate">

JQuery

$(document).ready(function() {
    var date = new Date();

    var day = date.getDate();
    var month = date.getMonth() + 1;
    var year = date.getFullYear();

    if (month < 10) month = "0" + month;
    if (day < 10) day = "0" + day;

    var today = year + "-" + month + "-" + day +"T00:00";       
    $("#theDate").attr("value", today);
});

demo

如果你不想使用jQuery，你可以这样做

JS

var date = new Date();

var day = date.getDate();
var month = date.getMonth() + 1;
var year = date.getFullYear();

if (month < 10) month = "0" + month;
if (day < 10) day = "0" + day;

var today = year + "-" + month + "-" + day;       
document.getElementById("theDate").value = today;

demo

TS

const date = new Date()
const year = date.getFullYear()

let month: number | string = date.getMonth() + 1
let day: number | string = date.getDate()

if (month < 10) month = '0' + month
if (day < 10) day = '0' + day

const today = `${year}-${month}-${day}`    
document.getElementById("theDate").value = today;

HTML:

<input type="date" value="2022-01-31">

PHP:

<input type="date" value="<?= date('Y-m-d') ?>">

日期格式必须为“yyyy-mm-dd”