查看golang的2D切片的文档,无法理解上一个示例中使用的语法:
func main() {
XSize := 5
YSize := 5
// Allocate the top-level slice, the same as before.
picture := make([][]uint8, YSize) // One row per unit of y.
// Allocate one large slice to hold all the pixels.
pixels := make([]uint8, XSize*YSize) // Has type []uint8 even though picture is [][]uint8.
// Loop over the rows, slicing each row from the front of the remaining pixe ls slice.
for i := range picture {
picture[i], pixels …