nonnegative integer
常见例句
- Each argument must be an expression that evaluates to a nonnegative integer.
每個蓡數必須是計算結果爲非負整數的表達式。 - The resulting value must be a nonnegative integer less than the sequence's length, and the sequence is asked to assign the assigned object to its item with that index.
最後的值必須是一個小於該序列長度的非負整數，然後該序列就被請求將被賦對象賦值給它帶那個指標的項。 返回 nonnegative integer