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formual.js
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formual.js
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class baseForm
{
constructor()
{
this.x1=-1;
this.y1=-1;
this.fontSize=-1;
this.supMaker=null;
this.subMaker=null;
}
verify()
{
return this.x1!=-1 && this.y1!=-1 && this.fontSize!=-1;
}
}
class maker
{
constructor(markFlag, form)
{
this.markFlag=markFlag;
this.form=markFlag;
}
draw()
{
//fix:根据上下标计算form的三个量
form.draw();
}
}
class formual extends baseForm
{
constructor(formStr)
{
super();
this.formStr=formStr;
}
getType()
{ return "basic"; }
draw()
{
//fix:
}
}
class sqrtForm extends baseForm
{
constructor(form)
{
super();
this.form=form;
}
getType()
{ return "sqrt"; }
draw()
{
//fix:
}
}
class inteForm extends baseForm
{
constructor(upper=null, lower=null, expr=null)
{
super();
this.upper=upper;
this.lower=lower;
this.expr=expr;
}
getType()
{ return "inte"; }
draw()
{
//fix:
}
}
class fracForm extends baseForm
{
constructor(numForm, denForm)
{
super();
this.numForm=numForm;
this.denForm=denForm;
}
getType()
{ return "frac"; }
draw()
{
//fix:
}
}
class matForm extends baseForm
{
constructor(allForm)
{
super();
this.allForm=allForm;
}
getType()
{ return "mat"; }
draw()
{
//fix:
}
}