如何根据不同数组行中值的比较添加列 [英] How do I add column based on comparison of values in different rows of array

问题描述

拥有以下CSV文件：

首页|上一页|电子邮件| EmpID | SupervisorID |城市|

Frank | Rizzo | [e-mail] | 99999 | 88888 | Yonkers |
Sol | Rosenberg | [e-mail] | 88888 | 56565 | Queens |



理想情况下需要要将第二个数字列与第一个数字列进行比较，如果找到匹配项，请抓取匹配项的电子邮件并附加该列。由于上面有匹配，它会产生：



Frank | Rizzo | [e-mail] | 99999 | 88888 | Yonkers | sol.rosenberg@msn .com |



我尝试过：



尝试重复来源文件和两个数组的匹配，但这是愚蠢的，必须是一个阵列的方式。使用两个不同的索引并循环通过CSV文件生成的同一个数组？

解决方案

Quote：

使用两个不同的索引并循环通过CSV文件生成的同一个数组？

完全正确。





多数民众赞成'用两个嵌套循环完成：

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Have a CSV file like this:
First|Last|Email|EmpID|SupervisorID|City|
Frank|Rizzo|[e-mail]|99999|88888|Yonkers|
Sol|Rosenberg|[e-mail]|88888|56565|Queens|

Ideally want to compare the second numeric column to the first numeric column and if it finds a match, grab the email of the match and append that column. Since the above has a match, it would generate:

Frank|Rizzo|[e-mail]|99999|88888|Yonkers|[e-mail]|

What I have tried:

Tried duplicating source file and doing a match of two arrays, but that's silly, got to be a way with one array. Use two different indexes and loop through same single array generated from CSV file?

解决方案

Quote:

Use two different indexes and loop through same single array generated from CSV file?

Exactly.


Thats' tipically done with two nested loop like:

for (

i = 0;

i < (

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