编写程序通过设置ios::scientific和ios::fixed标志以定点和科学计数法显示浮点类型数据。

测试：

#include <iostream>

using namespace std



int main()

{

double x = .001234567, y = 1.886e9



//…

return 0

}

-Write a program by setting the ios:: scientific and ios:: fixed flag with fixed-point and scientific notation floating-point type data display. Test:# include <iostream> using namespace std　int main () (double x = .001234567, y = 1.886e9 // ... return 0 )