目录写在前面1、String1.1、String底层实现1.2、str="abc"和new String(“abc”)的区别1.3、使用+拼接字符串1.4、如何使用String.intern节约内存1.5、分割字符，split()和indexOf()用哪个2、正则
I have a Microsoft SQL Server database that contains a data field of BIT type. This field will have either 0 or 1 values to represent false and true.
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