斯卡拉多維數組行不通

Question

val matrix = Array.ofDim[Int](r,c); 
//matrix(0)(0) = 0; 

for (i <- 0 to r) { 
//println(i) 
    for (j <- 0 to c){ 
    if (j == 0) 
     matrix(i)(j) = 1 
    } 
} 

Answer 1

您的陣列具有r行和c的cols，從0編號。你試圖訪問一個元素了這些邊界時i == r或j == c的。

for (i <- 0 until r) { 
    for (j <- 0 until c) { 
    ... 
    } 
}