温度单位换算

{"c":{"label":"摄氏度","symbol":"°C","factor":1},"f":{"label":"华氏度","symbol":"°F","factor":1},"k":{"label":"开尔文","symbol":"K","factor":1},"r":{"label":"兰氏度","symbol":"°R","factor":1},"re":{"label":"列氏度","symbol":"°Ré","factor":1}}