開發(fā)中偶爾會遇到將普通數(shù)據(jù)轉(zhuǎn)成千分位數(shù)據(jù)。

+ (NSString *)positiveFormat:(NSString *)text{
    
    if(!text || [text floatValue] == 0){
        return @"0.00";
    }else{
        NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
        [numberFormatter setPositiveFormat:@",###.00;"];
        return [numberFormatter stringFromNumber:[NSNumber numberWithDouble:[text doubleValue]]];
    }
    return @"";
}