题目内容 (请给出正确答案)
提问人:网友c********1 发布时间:2023年3月31日 19:36
[单选题]

委托类型DG1的定义为delegate float DG1(int a,ref double b);那么下列委托对象的创建表达式中合法的有:()。

A.DG  1dg1=delegate {return  0.3;}; B.DG  1dg2=delegate {return  a;}; C.DG  1dg3=delegate (int  a,ref  double  b) {return  a;}; D.DG  1dg4=delegate (int  a,ref  double  b) {return  a/b;};

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