PHP 打开文件成功 但写入失败

代码 --------------- dataStr="FMsg/".date("y-m-d");//获取当前日期作为文件夹名 $this->file_old="FMsg/... 代码 --------------- dataStr="FMsg/".date("y-m-d");//获取当前日期作为文件夹名 $this->file_old="FMsg/model.html"; $this->file_new=$this->dataStr."/pap1122.html"; if(file_exists($this->dataStr)) {echo "exist
";
copy($this->file_old，$this->file_new);
if(!$this->f_open=fopen($this->file_new，'w'))
{print "can't open file
";exit;} if(!fwrite($this->file_new，"yaya")) {print "can't write in this file
";exit;} print "write sucess"; fclose(!$this->f_open); } else { mkdir($this->dataStr);}//创建目录 } } $newhtme=new FmsgToHtml(); ?> -------------- 输出 ------------ exist can't write in this file ------------ 请高手指点。