c++ - 关于 C++ 格式化输出的查询

Question

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Answer 1

另一个依赖于纯 C++ 特定构造的答案。

#include <iostream>
#include <iomanip>

int main()
{
   char const* filename = "abcd";
   int size = 10;
   double width = 20;
   double height = 30;

   // std::left says align the output to the left when writing the next field
   // set::setw(20) says use 20 characters for the next field.
   std::cout << std::left << std::setw(20) << "name" << filename << std::endl;
   std::cout << std::left << std::setw(20) << "Size in KB" << size << std::endl;
   std::cout << std::left << std::setw(20) << "Width and Height" << width << " " << height << std::endl;

   return 0;
}