首先我们来看下as a result和as a result of的大致意思：
as a result：词性为短语，as a result 是一个短语，由介词 as 和名词 result 组成，意为“因此，结果”。
as a result of：词性为短语，as a result of 是一个短语，由介词 as、一个名词 result 和介词 of 组成，意为“由于，因为”。
通过下面的表格我们了解下as a result和as a result of的含义、发音和用法
接下来让我们看下as a result和as a result of的用法区别：
1.构成：as a result 是由介词 as 和名词 result 组成，而 as a result of 是由介词 as、一个名词 result 和介词 of 组成。
例子：
- He was tired, and as a result, he resigned.
(他很累，因此他辞职了。)
- She failed, and as a result of that, she felt depressed.
(她失败了，因此她感到沮丧。)
2.用法位置：as a result 通常放在句子后面，表示一个事情发生的原因或结果；as a result of 通常放在句子后面，表示一个事情发生的原因。
例子：
- The weather was bad, so the match was canceled as a result.
(天气恶劣，因此比赛被取消了。)
- The crops died as a result of too much rain.
(由于雨水太多，庄稼死掉了。)
3.含义：as a result 强调一个事情发生的结果，而 as a result of 强调一个事情发生的原因。
例子：
- He was often late, and as a result, he was fired.
(他常常迟到，结果被开除了。)
- He was late as a result of the traffic congestion.
(因为交通拥堵，他迟到了。)
4.语法结构：as a result 作为一个独立的短语存在，而 as a result of 是一个介词短语，需要与其他词组合使用。
例子：
- He studied hard, and as a result, he got good grades.
(他努力学习，结果考试取得了好成绩。)
- Many people became unemployed as a result of the economic crisis.
(由于经济危机，很多人失业了。)