编译器报错The type of the expression must be an array type but it resolved to int.

代码编写过程中报错The type of the expression must be an array type but it resolved to int. 说明一个int类型的变量被当作了数组类型array来处理。

检查代码：

public static int InsertValueSearch(int arr, int left, int right, int findVal) {if( left > right || findVal < arr[0] || findVal > arr[arr.length-1]) {return -1;}int mid = left + (right - left) * (findVal - arr[left])/(arr[right] - arr[left]);int midVal = arr[mid];

发现arr初始的类型错误，改为

public static int InsertValueSearch(int[] arr, int left, int right, int findVal)

报错消失。

其他地方的这个报错应该也是相同的问题，或者是[]符号没有打对。

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编译器报错The type of the expression must be an array type but it resolved to int.

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