假设File中的内容为:name 123 234 345 456     
                    
                    QTextStream t(&File);
        if (!t.atEnd())
        {
            t >> Name;       //Name为QString
            t >> x1 >> y1 >> x2 >> y2;      // x1、y1、x2、y2均为double型
        }
那么这段代码执行后 Name="name"还是="name 123 234 345 456 "?
                                      x1=123 , y1=234 , x2=345 , y2=456  吗?
谢谢各位前辈指点~~~!!