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NSString *money = @"asdf1245.00";
// money = [money stringByReplacingOccurrencesOfString:@"元" withString:@""];
// money = [money stringByReplacingOccurrencesOfString:@"¥" withString:@""];
NSScanner *scanner = [NSScanner scannerWithString:money];
[scanner scanUpToCharactersFromSet:[NSCharacterSet decimalDigitCharacterSet] intoString:nil];
float number;
[scanner scanFloat:&number];
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