使用 NSNumberFormatter

发布于 2024-09-04 06:27:25 字数 733 浏览 1 评论 0原文

我有一个问题正在寻找答案。我不太了解 NSNumberFormatter。我盯着文档看了一会儿，似乎无法理解为什么我根本无法让 setMinimum （或 setMaximum）工作。

这是我正在使用的代码：

NSNumberFormatter* numberFormatter = [[[NSNumberFormatter alloc] init] autorelease];
[numberFormatter setMinimum:[NSDecimalNumber decimalNumberWithString:@"2"]];
[numberFormatter setMaximum:[NSDecimalNumber decimalNumberWithString:@"2"]];
[numberFormatter setMultiplier:[NSNumber numberWithDouble:1]];
//[numberFormatter setMaximumFractionDigits:OVER9000];
NSLog(@"%@, %@", [numberFormatter stringFromNumber:[NSNumber numberWithDouble:1.123456789]], [numberFormatter stringFromNumber:[NSNumber numberWithDouble:0.8]]);

我一直在玩类似的东西，我的计划是会发生一些事情，但它看起来确实没有发生任何事情（即在控制台中，我得到 1, 1 )...

原文

I have a question that I am looking for the answer to. I am not really understanding NSNumberFormatter. I've stared at the documentation for a while, and can't seem to understand why I can't get setMinimum (or setMaximum) to work at all.

Here is the code I am using:

NSNumberFormatter* numberFormatter = [[[NSNumberFormatter alloc] init] autorelease];
[numberFormatter setMinimum:[NSDecimalNumber decimalNumberWithString:@"2"]];
[numberFormatter setMaximum:[NSDecimalNumber decimalNumberWithString:@"2"]];
[numberFormatter setMultiplier:[NSNumber numberWithDouble:1]];
//[numberFormatter setMaximumFractionDigits:OVER9000];
NSLog(@"%@, %@", [numberFormatter stringFromNumber:[NSNumber numberWithDouble:1.123456789]], [numberFormatter stringFromNumber:[NSNumber numberWithDouble:0.8]]);

I've been playing around with stuff like that and my plan was that something would happen, but it really doesn't look like anything is going on (i.e. in the console, I get 1, 1)...

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