java的BS结构如何实现input框扫码输入功能？

先来分析一下原理。

1.js调用手机或者pad终端的摄像头，拍照。

2.苹果或者安卓原生程序获取到拍照的照片路径，然后解析图片二维码，将二维码中的内容返回给前台

3.前台将内容显示在input框中。

网上有现成的来源库，自己搜索一下吧，二维码解析已经很普遍了，没啥难度。

一般扫描二维码，都是将代码写在硬件里，比如扫码q，电脑链接扫码q，直接将扫描内容显示在页面上。

大智慧bs点指标（附图）

VAR4:=((HHV(HIGH,9) - CLOSE)/(HHV(HIGH,9) - LLV(LOW,9)))*(100) - 70

VAR5:=((CLOSE - LLV(LOW,60))/(HHV(HIGH,60) - LLV(LOW,60)))*(100)

VAR7:=SMA(((CLOSE - LLV(LOW,9))/(HHV(HIGH,9) - LLV(LOW,9)))*(100),3,1)

VAR8:=LLV(LOW,34)

VARC:=EMA(((((2)*(CLOSE) + HIGH + LOW)/(4) - VAR8)/(HHV(HIGH,34) - VAR8))*(100),8)

VARD:=EMA(VARC,5)

VARE:=((HHV(HIGH,9) - CLOSE)/(HHV(HIGH,9) - LLV(LOW,9)))*(100) - 70

VAR11:=SMA(((CLOSE - LLV(LOW,9))/(HHV(HIGH,9) - LLV(LOW,9)))*(100),3,1)

VAR12:=SMA(VAR11,3,1) + 100

VAR13:=VAR12 - SMA(VARE,9,1) + 100

VAR14:=ZIG(3,13)

建仓:=IF((VARC >17) and (VARC <59) and (VARC - VARD >= 0),10,(-10))

猎豹:=IF((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),10,45)

丰收:=IF((VARC >70) and (VARC - VARD >= 0),77,82)

牛:=IF((VAR13 >100),VAR13 - 100,0)

顶:=IF((REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),95,55)

风:=IF((VARC - VARD >0),VARC,VARD)

STICKLINE((REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),CLOSE,OPEN,5,0),Color66FF00

STICKLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),CLOSE,OPEN,5,0),coloryellow

DRAWLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.08),(REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.05),0),Linethick5,Color070084

DRAWLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.08),(REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.05),0),Linethick4,Color0000A3

DRAWLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.08),(REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.05),0),Linethick3,Color0000B7

DRAWLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.08),(REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.05),0),Linethick2,Color0000CD

DRAWLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.08),(REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.05),0),Linethick1,Color077BF3

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,5,0),ColorFF5B00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,4.5,0),ColorFF6C00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,4,0),ColorFF7B00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,3.5,0),ColorFF9C00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,2,0),ColorFFBE00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,1,0),ColorFFCC00

STICKLINE((OPEN >= CLOSE),CLOSE,OPEN,0.5,0),ColorCCCCCC

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,5,0),Color070084

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,4.5,0),Color0000A3

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,4,0),Color0000B7

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,3.5,0),Color0000CD

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,2,0),Color0000E9

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,1,0),Color0754E9

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,1,0),Color076EF3

STICKLINE((CLOSE >= OPEN),CLOSE,OPEN,0.5,0),Color077BF3

STICKLINE((CLOSE >OPEN),OPEN,LOW,0.5,0),Color0726CA

STICKLINE((CLOSE >OPEN),CLOSE,HIGH,0.5,0),Color0726CA

STICKLINE((OPEN >CLOSE),CLOSE,LOW,0.5,0),ColorDE9100

STICKLINE((OPEN >CLOSE),OPEN,HIGH,0.5,0),ColorDE9100

买:DRAWTEXT((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),LOW - (LOW)*(0.05),'买'),colorred

卖:DRAWTEXT((REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),LOW - (LOW)*(0.03),'卖'),Color66FF00

STICKLINE((REF(VAR14,2) <REF(VAR14,1)) and (VAR14 <REF(VAR14,1)),CLOSE,OPEN,5,0),Color66FF00

STICKLINE((REF(VAR14,2) >REF(VAR14,1)) and (VAR14 >REF(VAR14,1)),CLOSE,OPEN,5,0),coloryellow

还有一个：

{n=18m=14i=26}

Var1:=INDEXV*INDEXC

Var2:=EMA(Var1,5)/EMA(INDEXV,5)

Var3:=(INDEXC-Var2)/Var2*100

Var4:=Var3<=-1.5 AND Var3>-100

Var5:=SUM(Var4>0,N)/SUM(Var4=0,N)

Var6:=Var5<5 AND Var5>=0.25

Var7:=(LOW+HIGH+CLOSE)/3

Var8:=(Var7-MA(Var7,M))/(0.015*AVEDEV(Var7,M))

Var9:=EMA(Var8,3)

VarA:=(HIGH+LOW+CLOSE)/3

VarB:=SUM(MAX(0,HIGH-REF(VarA,1)),I)/SUM(MAX(0,REF(VarA,1)-LOW),I)*100

VarC:=REF(MA(VarB,3),2.2)

VarD:=REF(MA(VarB,13),6.2)

VarE:=REF(MA(VarB,89),36.6)

VarF:=CROSS(VarC,VarB) AND VarB>150

DRAWTEXT(Var6 AND CROSS(Var8,Var9),LOW,'抄底')

DRAWTEXT(VarF,HIGH,'逃顶')

供参考。

指标是人写出来的。使用也要靠使用者的分析。就是说指标不是万能的。

<script type="text/javascript">

function selectthis(obj){

    var content=document.getElementById("content")

    if(obj.checked){

        var btnjian=document.createElement("input")

        btnjian.type="button"

        btnjian.value="-"

        btnjian.setAttribute("fid",obj.id)

        btnjian.onclick=function(){

            var fdiv=document.getElementById("f"+this.getAttribute("fid"))

            var fnum=fdiv.getElementsByTagName("input")[0]

            if(fnum.value>1)fnum.value-=1

        }

        var btnjia=document.createElement("input")

        btnjia.type="button"

        btnjia.value="+"

        btnjia.setAttribute("fid",obj.id)

        btnjia.onclick=function(){

            var fdiv=document.getElementById("f"+this.getAttribute("fid"))

            var fnum=fdiv.getElementsByTagName("input")[0]

            fnum.value=parseInt(fnum.value)+1

        }

        var num=document.createElement("input")

        num.type="text"

        num.value=1

        var foodname=document.createTextNode(obj.value)

        var box=document.createElement("div")

        box.id="f"+obj.id

        box.appendChild(foodname)

        box.appendChild(num)

        box.appendChild(btnjia)

        box.appendChild(btnjian)

        content.appendChild(box)

    }else{

        var box=document.getElementById("f"+obj.id)

        content.removeChild(box)

    }

}

</script>

<div id="select"> 

种类：<br/> 

<input id="f1" type="checkbox" value="馒头" onClick="selectthis(this)" name="items">馒头<br/>

<input id="f2" type="checkbox" value="油饼" onClick="selectthis(this)" name="items">油饼<br/>

<input id="f3" type="checkbox" value="油条" onClick="selectthis(this)" name="items">油条<br/>

</div>

已选：

<div id="content"></div>

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