字符串列表相减器 工作中常遇到重复处理事务，比如求职过程中，经过一段时间后以前考虑过的职位又被重新考虑造成时间浪费。该工具帮助挑选出重复内容、不同内容，应用在多种场合，帮助减少重复工作： 给出A,B列表，计算A-B, (A-(A-B)), (B-(A-B))。-Strings list subtraction program. Frequently encountered in the work of double handling of affairs, such as job s

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