如何比较Excel中的两列并复制下一列中的相应值

I have 3 columns in my Excel list. Column A contains "computer names", column C contains "Computer names" and column D contains "IP addresses". I want to compare data in column A with column C and if a match is found, copy the corresponding value in column D (IP Address) into column B.I have 3 columns in my Excel list. Column A con