// 获取日期
function getBeforeDate(n){
var date = new Date() ;
var year,month,day ;
date.setDate(date.getDate()-n);
year = date.getFullYear();
month = date.getMonth()+1;
day = date.getDate() ;
s = ( month < 10 ? ( '0' + month ) : month ) + '-' + ( day < 10 ? ( '0' + day ) : day) ;
return s ;
}
console.log(getBeforeDate(0));//昨天的日期 12-12
// 获取月份
function getBeforeMonth(n){
var date = new Date() ;
var year,month,day ;
date.setDate(date.getMonth()+1-n);
month = date.getDate() // console.log(month);
s = month+'月';
// s = ( month < 10 ? ( '0' + month ) : month +'月') ;
return s;
}
console.log(getBeforeMonth(0)); //12月
// console.log(getBeforeMonth(5));
// 获取年月
function getBeforeYM(n){
var date = new Date() ;
var year,month,day ;
date.setDate(date.getMonth()+1-n);
year = date.getFullYear();
month = date.getDate();
s = year+""+( month < 10 ? ( '0' + month ) : month ) ;
return s ;
}
console.log(getBeforeYM(1));//201811
Js获取时间 年月日 封装
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转载自blog.csdn.net/weixin_42481234/article/details/84969105
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