批處理將多行內容在每行首尾添加指定字符串后合并成一行如何刪除最后一個指定字符

批處理將多行內容在每行首尾添加指定字符串后合并成一行如何刪除最后一個指定字符最后由 pcl_test 于 -8-12 17:24如何讓多行內容合并一行，并在每一個后面添加一個逗號如題Hotfix.txt　文本內容如下:www.aaaa.comwww.aaaa.comwww.bbb.comwww.assfj.comwww.sjfdlsf.comwww.123.comsadfjsa.tao.comwww.aaaa.comwww.bbb.com我想要得到的結果是http/*:80:www.aaaa.com,http/*:80:www.aaaa.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com,http/*:80:www.aaaa.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com這是我寫的@echo OFFsetlocal EnableDelayedExpansionfor /f delims= %%i in (Hotfix.txt) do call set var=%%var%%http/*:80:%%i,echo %var%pause出現結果是我想要的不過　最后多了一個　, 號　如何把最一個逗號刪除http/*:80:www.aaaa.com,http/*:80:www.aaaa.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com,http/*:80:www.aaaa.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com,http/*:80:www.bbb.com,http/*:80:www.assfj.com,http/*:80:www.sjfdlsf.com,http/*:80:www.123.com,http/*:80:sadfjsa.tao.com,注意　　我不想要最后一個逗號　怎么去掉