On the ARMV8 architecture, how to print floating-point registers

     在ARMv8架构上，我使用r2 -d调试一个程序，在调试程序过程中，我不能正确的打印浮点寄存器。例如，使用dr s0时，没有输出。（On the ARMv8 architecture, I use r2 -d to debug a program, and during debugging the program, I can't print the floating-point registers correctly. For example, when using dr s0, there is no output.）。
      I'm not particularly familiar with the use of radare2, so I'm wondering what I need to do to fix this.