A.float f(float y);float f(float y);B.float f(float x);void f(float y);C.float f(float x);void f2(float x,float y);D.float f(float x,int y);void f(float y);
A.函数返回两个值100和200B.函数返回值200C.语句“return 200,100;”语法错,不能调用函数D.函数返回值100
A.ASCII码B.原码C.补码D.反码