Javascript日期变量赋值

var date = new Date();

var date = new Date(1633029896000);

var date = new Date("2021-10-01T08:31:36Z");

var date = new Date(2021, 9, 1, 8, 31, 36, 0);

var year = date.getFullYear();
var month = date.getMonth() + 1;
var day = date.getDate();
var hours = date.getHours();
var minutes = date.getMinutes();
var seconds = date.getSeconds();
var milliseconds = date.getMilliseconds();