js获取当前时间，往前或往后推多少天并且判断是星期几

var now = new Date(); var date = new Date(now.getTime() +1 * 24 * 3600 * 1000); var year = date.getFullYear(); var month = date.getMonth() + 1; var day = date.getDate(); var hour = date.getHours(); va

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