ios 比较两个 NSNumber 对象
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Comparing two NSNumber objects
提问by USK
I used this code to compare two NSNumber objects, but it never passed the if condition.
我用这个代码来比较两个NSNumber的对象，但它从来没有过的，如果条件。
listItems = [appDelegate.productStatus componentsSeparatedByString:@","];
for (int i=0;i<[appDelegate.productArray count]; i++)
{
for (int j=0; j<[listItems count]; j++)
{
number=[NSNumber numberWithInt:[[listItems objectAtIndex:j] intValue]];
NSLog(@"number %@",number);
productObject=[appDelegate.productArray objectAtIndex:i];
NSLog(@"%@,%@",productObject.pid,number);
if (productObject.pid == number)
{
NSLog(@"BUY it!!!");
[purchasArray addObject:productObject];
}
}
}
What is wrong?
怎么了？
回答by Saad
My sugestion is to compare it as
我的建议是将它比较为
if([productObject.pid intValue] == [number intValue])
{
NSLog(@"BUY it!!!");
[purchasArray addObject:productObject];
}
cheers.
干杯。
I'd avoid object comparison
我会避免对象比较
回答by Nitin
Change following code..
更改以下代码..
if ([productObject.pid isEqualToNumber number])
{
NSLog(@"BUY it!!!");
[purchasArray addObject:productObject];
}
Hope, this will help you..
希望能帮到你..
回答by Deviator
Try comparemethod instead of '=='.
尝试比较方法而不是“==”。
if([1stNum compare:secNum] == NSOrderedSame)
{
// do something
}
Tell me if it helps now!
现在告诉我它是否有帮助！
回答by vishiphone
Use like this I thing this will helpful for you
像这样使用我的东西这对你有帮助
NSNumber *n=[[NSNumber alloc]init];
if([n isEqualToNumber:somenumber])
{
}
