NSString float类型格式化

- (NSString *) getRoundFloat:(float ) floatNumber {
????NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
????[formatter setMaximumFractionDigits:1];?? // .1f
????[formatter setRoundingMode:NSNumberFormatterRoundHalfDown];??// up / down / half down
????NSString *numberString = [formatter stringFromNumber:[NSNumber numberWithFloat:floatNumber]];

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NSString stringWithFormat:@"%.0f %" , float*100

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