有如下程序: #includeiostream usingnamespacestd; classTest( public: Test( ){} Test(constTest8Lt){cout1;} }; Testfun(Test&u){Testt=U;returnt;} intmain( ){Testx,y;x=fun(y);return0;} 运行这个程序的输出结果是( )。A.无输出B.1C.1lD.111

有如下程序: #include<iostream> usingnamespacestd; classTest( public: Test( ){} Test(constTest8Lt){cout<<1;} }; Testfun(Test&u){Testt=U;returnt;} intmain( ){Testx,y;x=fun(y);return0;} 运行这个程序的输出结果是( )。

A.无输出

B.1

C.1l

D.111


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