从不兼容类型'int（^ __ strong）（void）'分配给'int'

Question

I am trying to call a block that returns me a random finalItemID (int) according to state of the app. But the app fails to build because of the error:

Assigning to 'int' from incompatible type 'int (^__strong)(void)'

My code:

//block declaration
int(^getMeAnItem)(void)=^int(void)
{
int finalItemID=0;
//some randomization code
return finalItemID;
};

int itemIDToBeChecked=0;
itemIDToBeChecked= getMeAnItem; //red error appears on this line

I am not seeing anything wrong going here. I hope you guys can help. Thanks.

Answer 1

要调用一个块，您需要实际调用它：

itemIDToBeChecked = getMeAnItem();

Answer 2

You initialise a variable named getMeAnItem. An initialisation always ends in a semicolon. Yours doesn't.

Answer 3

括号呢？

itemIDToBeChecked = getMeAnItem();