我如何最小化重复代码的功能？

Question

float qwer4 = 0; 

NSNumberFormatter *eFormatter = [[NSNumberFormatter alloc] init]; 

[eFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 

[eFormatter setMaximumFractionDigits:0]; 

NSString *formattede = [eFormatter stringFromNumber:[NSNumber numberWithFloat:qwer4]]; 

self.eLabel.text = [NSString stringWithFormat:@"%@",formattede];// 





float qwer6 = qwer4*6/100; 

NSNumberFormatter *pFormatter = [[NSNumberFormatter alloc] init]; 

[pFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 

[pFormatter setMaximumFractionDigits:0]; 

NSString *formattedpTax = [pFormatter stringFromNumber:[NSNumber numberWithFloat:qwer6]]; 

self.pLabel.text = [NSString stringWithFormat:@"%@",formattedp]; 




NSNumberFormatter *tFormatter = [[NSNumberFormatter alloc] init]; 

[tFormatter setNumberStyle: NSNumberFormatterCurrencyStyle]; 

[tFormatter setMaximumFractionDigits:0]; 

NSString *formattedtTax = [tTaxFormatter stringFromNumber:[NSNumber numberWithFloat:qwer4 + qwer6]]; 

self.tLabel.text = [NSString stringWithFormat:@"%@",formattedt]; 

• （无效）重复 { NSNumberFormatter * tFormatter = [[NSNumberFormatter的alloc] INIT];

  [tFormatter setNumberStyle：NSNumberFormatterCurrencyStyle];

  [tFormatter setMaximumFractionDigits：0]; NSString * formattedt = [tTaxFormatter stringFromNumber：[NSNumber numberWithFloat：??]];;};}};

  self.tLabel.text = [NSString stringWithFormat：@“％@”，formattedt]; }

Answer 1

创建只有一个NSNumberFormatter对象，并在所有三个地方使用它。这将缩短你的代码，并使它看起来更干净。