options(BioC_mirror="https://mirrors.ustc.edu.cn/bioc/")
options("repos" = c(CRAN="https://mirrors.tuna.tsinghua.edu.cn/CRAN/"))
options()$repos
options()$BioC_mirror
BiocManager::install("pasilla",ask = F,update = F)
BiocManager::install("DESeq",ask = F,update = F)