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我這個(gè)日期輸出有問題嗎？怎么不出來

var mydate=new Date();

var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];

var mynum=mydate.getDay();

document.write(mydate.getFullYear()+"年"+mydate.getMonth()+"月"+mydate.getDate()+"日"+weekday(mynum));

qq_穎心晴_04387028

2017-02-28

源自：JavaScript進(jìn)階篇 7-23

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2017-02-28

document.write(mydate.getFullYear()+"年"+mydate.getMonth()+"月"+mydate.getDate()+"日"+weekday(mynum)); //weekday[mynum],要用中括號(hào)不是小括號(hào)

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qq_穎心晴_04387028 提問者

var mydate=new Date(); var weekday=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]; var mynum=mydate.getDay(); document.write(mydate.getFullYear()+"年"+mydate.getMonth()+"月"+mydate.getDate()+"日"+weekday[mynum]); //通過javascript的日期對(duì)象來得到當(dāng)前的日期，并輸出。還是沒有輸出~