> x1<-array(1:24,dim=c(2,3.4))
> x1
[,1] [,2] [,3]
[1,] 1 3 5
[2,] 2 4 6
> x1
[,1] [,2] [,3]
[1,] 1 3 5
[2,] 2 4 6
大佬，你的代码里dim（2，3，4）打成了dim（2，3.4）
array usage里：
dim
the dim attribute for the array to be created, that is an integer vector of length one or more giving the maximal indices in each dimension.
所以相当于as.integer(3.4) equals 3
自然就是2行3列啦