objective-c - NSNumberFormatter 货币删除尾随零

Question

我想将价格格式化为 45.50，但我不想要 45.00 这样的价格。我怎样才能避免这种情况？

Answer 1

我是这样做的:

NSNumber *amount = @(50.5);
NSNumberFormatter *currencyFormat = [[NSNumberFormatter alloc] init];
[currencyFormat setNumberStyle:NSNumberFormatterCurrencyStyle];
[currencyFormat setLocale:[NSLocale currentLocale]];

if (trunc(amount.floatValue) == amount.floatValue) {
    [currencyFormat setMaximumFractionDigits:0];
} else {
    [currencyFormat setMaximumFractionDigits:2];
}

NSLog(@"%@", [currencyFormat stringFromNumber:amount]);

我喜欢这个解决方案，因为它很简单。输出将为 $50.50。对于 amount = @(50.0) 将是 $50