程序分析,给出运算结果.#include \x05class Sample\x05{\x05int x;public:\x05Sample(int a){ x = a; }friend double square(Sample & s);\x05};double square(Sample & s){ return s.x*s.x; }\x05void main()\x05{\x05Sample s1(20);\x05Sample s2(30);\x05c
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![程序分析,给出运算结果.#include \x05class Sample\x05{\x05int x;public:\x05Sample(int a){ x = a; }friend double square(Sample & s);\x05};double square(Sample & s){ return s.x*s.x; }\x05void main()\x05{\x05Sample s1(20);\x05Sample s2(30);\x05c](/uploads/image/z/7359303-39-3.jpg?t=%E7%A8%8B%E5%BA%8F%E5%88%86%E6%9E%90%2C%E7%BB%99%E5%87%BA%E8%BF%90%E7%AE%97%E7%BB%93%E6%9E%9C.%23include+%5Cx05class+Sample%5Cx05%7B%5Cx05int+x%3Bpublic%3A%5Cx05Sample%28int+a%29%7B+x+%3D+a%3B+%7Dfriend+double+square%28Sample+%26+s%29%3B%5Cx05%7D%3Bdouble+square%28Sample+%26+s%29%7B+return+s.x%2As.x%3B+%7D%5Cx05void+main%28%29%5Cx05%7B%5Cx05Sample+s1%2820%29%3B%5Cx05Sample+s2%2830%29%3B%5Cx05c)
程序分析,给出运算结果.#include \x05class Sample\x05{\x05int x;public:\x05Sample(int a){ x = a; }friend double square(Sample & s);\x05};double square(Sample & s){ return s.x*s.x; }\x05void main()\x05{\x05Sample s1(20);\x05Sample s2(30);\x05c
程序分析,给出运算结果.
#include
\x05class Sample
\x05{
\x05int x;
public:
\x05Sample(int a){ x = a; }
friend double square(Sample & s);
\x05};
double square(Sample & s){ return s.x*s.x; }
\x05void main()
\x05{
\x05Sample s1(20);
\x05Sample s2(30);
\x05cout
程序分析,给出运算结果.#include \x05class Sample\x05{\x05int x;public:\x05Sample(int a){ x = a; }friend double square(Sample & s);\x05};double square(Sample & s){ return s.x*s.x; }\x05void main()\x05{\x05Sample s1(20);\x05Sample s2(30);\x05c
s1.square=400
s2.square=900