105
以下代码格式编号为固定宽度,带前导零
a <- seq(1,101,25)
b <- paste("name", 1:length(a), sep = "_")
产生这样的输出:
"name_1" "name_26" "name_51" "name_76" "name_101"
我想有所有值的相同宽度,这意味着为我用这样的零填充值:
"name_001" "name_026" "name_051" "name_076" "name_101"
我该如何处理?
(此问题被有关this one)