批量读取productFlavors

productFlavors {        def path="./channel.txt"        file(path).eachLine { line->            def words = line.split(':')            def key = words[0]            def channel = words[1]            if (key == '') {                key = channel            }            def name = 's'+channel            "$name" {                manifestPlaceholders=[APP_KEY_PLACEHOLDER:key, APP_PID_PLACEHOLDER:name]            }        }    }