per

per

[英][pə(r)][美][pɚ]

prep.由;（表示根据）依照;（表示比率）（尤指数量，价格，时间）每;

adv.每次;每个;照常;按惯例;

adj.高的，过的，全的;

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as per sth

按照；依据 

following sth that has been decided 

The work was carried out as per instructions. 

工作是按指示进行的。 

as per normal/usual

(informal) 照常；按惯例；一如既往 

in the way that is normal or usual; as often happens 

Everyone blamed me as per usual. 

大家照例是责怪我。 

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as per 和according to的区别：

1、适用范围不同

as per 简短，通常是商务邮件往来中出现多 ，而 according to 更正式些。 

2、词义深度不同

as per 就是按照的意思；according to 意义更多一点，意思是根据; 取决于; 按照; 据......所载。

3、用法不同

according to的用法，如，Everything went according to plan. 一切都按照计划进行。

as per的用法，例如，The work was carried out as per instructions. 工作是按指示进行的。