我想将中间0替换为1。我该怎么做?val list = mutableListOf(0,0,0,0,0) 最佳答案 您可以尝试以下操作:val list = mutableListOf(0, 0, 0, 0, 0) list[list.size / 2] = 1 // after this array should look like this: (0, 0, 1, 0, 0)