iOS解析数字字符串会转变成科学计数法问题

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 3 //使用此方法转换即可
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 7 - (NSString *)formartScientificNotationWithString:(NSString *)str{
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 9     long double num = [[NSString stringWithFormat:@"%@",str] floatValue];
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11     NSNumberFormatter * formatter = [[NSNumberFormatter alloc]init];
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13     formatter.numberStyle = kCFNumberFormatterNoStyle;
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15     NSString * string = [formatter stringFromNumber:[NSNumber numberWithDouble:num]];
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17     return [NSString calculateFormat:string];
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19 }
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posted on 2017-06-01 16:15 Yevgeni 阅读(4198) 评论(0) 编辑收藏举报