修改网上的CSpreadSheet类,增加putvalue_to_excel函数，对EXCEL表进行添加数据时可以调用如下如开形式putvalue_to_excel("数据", "A1") -Modify online CSpreadSheet class, increasing putvalue_to_excel function of EXCEL table to add the data can call the following forms such as open putvalue_to_excel (" data" , " A1" )