iOS nssting 转long long 类似（1111.11） 数据转换 不丢失精度

Question

@"1111.11"转 longlong 不丢失精度

Answer 1

NSString *str = @"FFFF00FF";
NSScanner* scanner = [NSScanner scannerWithString: str];

unsigned long long longValue;
[scanner scanHexLongLong: &longValue];
NSLog(@"LongValue = %lld", longValue);
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