PHP表达式$foo=1+”bob3”,则$foo的值是()
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读代码:public class Test {public static void main (String args[]) {class Foo {public int i = 3;}Object o = (Object) new Foo();Foo foo = (Foo)o;System.out.println(foo.i);}}结果是:
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有如下类声明:clasFooinbar;;则Foo类的成员bar是()
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