var day ?= date.getDay(); //星期?

? var week = '';

? switch(day){

case ?0 :

week ?= '星期一';

break;

case ?1 :

week ?= '星期二';

break;

case ?2 :

week ?= '星期三';

break;

case ?3 :

week ?= '星期四';

break;

case ?4 :

week ?= '星期五';

break;

case ?5 :

week ?= '星期六';

break;

case ?6 :

week ?= '星期天';

break;?

? }