中文字號VS英文字號(磅)VS像素值的對應關系：

八號＝5磅(5pt) ==(5/72)*96=6.67 =6px

七號＝5.5磅 ==(5.5/72)*96=7.3 =7px

小六＝6.5磅 ==(6.5/72)*96=8.67 =8px

六號＝7.5磅 ==(7.5/72)*96=10px

小五＝9磅 ==(9/72)*96=12px

五號＝10.5磅 ==(10.5/72)*96=14px

小四＝12磅 ==(12/72)*96=16px

四號＝14磅 ==(14/72)*96=18.67 =18px

小三＝15磅 ==(15/72)*96=20px

三號＝16磅 ==(16/72)*96=21.3 =21px

小二＝18磅 ==(18/72)*96=24px

二號＝22磅 ==(22/72)*96=29.3 =29px

小一＝24磅 ==(24/72)*96=32px

一號＝26磅 ==(26/72)*96=34.67 =34px

小初＝36磅 ==(36/72)*96=48px

初號＝42磅 ==(42/72)*96=56px