为什么这个简单的\'if\'语句不起作用（在快速枚举中）？

ChecklistItem

priority

checklistItems

Checklist

for (ChecklistItem *eachItem in checklist.checklistItems){
    NSLog(@\"Going through loop. Item %@ has priority %@.\", eachItem.name, eachItem.priority);

    if (eachItem.priority == [NSNumber numberWithInt:1]) {
        NSLog(@\"Item %@ has priority 1\", eachItem.name);
        }
}

for (ChecklistItem *eachItem in checklist.checklistItems){
    NSLog(@\"Going through loop. Item %@ has priority %@.\", eachItem.name, eachItem.priority);

    if ([eachItem.priority intValue]== 1) {
        NSLog(@\"Item %@ has priority 1\", eachItem.name);
        }
}

eachItem.priority

[NSNumber numberWithInt:1]

if ( [eachItem.priority intValue] == 1 ) { ... }

NSNumber