private static final Log log 是定义一个Log型的常量
LogFactory.getLog(DataSourceManager.class);这个方法会返回一个Log型的对象
private static final Log log = LogFactory.getLog(DataSourceM
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相关问题
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private static final log log = logfactory.getlog(***.class);
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log10是什么?log 75 - log 3 + log 4＝log25＋log3－log3＋2log2＝2log5＋
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已知log2[log1/2(log2x)]=log3[log1/3(log3y)]=log5[log1/5(log5z)
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1.给出如下代码：class Test{ private int m; public static void fun()
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log2[log3（log4x）]=log3[log4（log2y）]=0，则x+y=______．
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log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?