ffg go mutil version manager
install
set environment
FFG_HOMEdefault value is~/.ffgFFG_MIRRORdefault value is go.dev, if work in china's mainland please set this valuehttps://studygolang.com
usage
ffg lslist local versionffg ls-remotepull release versionffg use 1.15.6install and usedffg rm 1.15.6removeffg ins 1.15.6just install the specify version
setting go path
# set ffg home
# add goroot to path