java.lang.NullPointerException at javax.swing.ImageIcon.(Unk
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java.lang.NullPointerException at javax.swing.ImageIcon.(Unknown Source)
![java.lang.NullPointerException at javax.swing.ImageIcon.(Unk](/uploads/image/z/7562869-61-9.jpg?t=java.lang.NullPointerException+at+javax.swing.ImageIcon.%28Unk)
空指针异常,应该是你调用了某个对象,声明了,但是没有初始化
java.lang.NullPointerException at javax.swing.ImageIcon.(Unk
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