NSString float类型格式化

lizhuang

- (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]];
 
NSString stringWithFormat:@"%.0f %" , float*100
 
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