老师应该是说int类型成员变量的初始值为0；其他八种成员变量的默认初始值是For type byte, the default value is zero, that is, the value of (byte)0. For type short, the default value is zero, that is, the value of (short)0. For type int, the default value is zero, that is, 0. For type long, th...
