Objrichtext-an independent font block in PHPExcel $ setting font for objRichText does not work

$ ObjPHPExcelnewPHPExcel (); $ objPHPExcel-& gt; getActiveSheet ()-& gt; getdefastyle style ()-& gt; getFont ()-& gt; setSize (11)-& gt; setName (& #39; UTF-8 & #39;); $ objPHPExcel-& gt; getActiveSheet ()-& gt; setTitle (& #39; sheet1 & #39 ;); $ sheet $ objPHPExcel-& gt; setActiveSh objrichtextphpphpexcel font effect cannot be displayed

$ ObjPHPExcel = new PHPExcel ();
$ ObjPHPExcel-> getActiveSheet ()-> getDefaultStyle ()-> getFont ()-> setSize (11)-> setName ('utf-8 ');

$ ObjPHPExcel-> getActiveSheet ()-> setTitle ('sheet1 ');

$ Sheet = $ objPHPExcel-> setActiveSheetIndex (0 );

$ ObjRichText = new PHPExcel_RichText ();
$ ObjRichText-> createText ('');
$ ObjPayable = $ objRichText-> createTextRun ('red type ');
$ ObjPayable-> getFont ()-> setColor (new PHPExcel_Style_Color (PHPExcel_Style_Color: COLOR_RED ));
$ Sheet-> setCellValue ('e6 ',' followed by a red font: '. $ objRichText );

The above is my code.
The result is that the text in the objPayable file can be displayed, but the text added to it cannot be displayed.
Puzzling, for help