我有如下堆疊的數(shù)據(jù)框。我嘗試使用to_dict()命令轉(zhuǎn)換為字典。但是，我收到以下錯(cuò)誤。TypeError: key ('PODIUM WINDOW', 'SHGC value') is not a string  誰能告訴我我應(yīng)該為這個(gè)堆疊的數(shù)據(jù)框做些什么來轉(zhuǎn)換為如下的字典？[{"Construction":"Office Window","U-value[W/m2-K]":1.63},{"Construction":"Office Window","SHGC value":0.22},{"Construction":"Podium Window","U-value[W/m2-K]":5.48},{"Construction":"Podium Window","SHGC value":0.70}]堆疊數(shù)據(jù)框ConstructionOFFICE WINDOW  U-value[W/m2-K]    1.63               SHGC value         0.22PODIUM WINDOW  U-value[W/m2-K]    5.48               SHGC value         0.70