计算：.t(\-H.|2M-U2D+Y0\2K
53×57.t(\-H.|2M-U2D+Y0\2K
算式：提示'C8T4k:^(o.t(\-H.|2M-U2D+Y0\2K
=/y*k+p9g:Z7{7}8^3V.t(\-H.|2M-U2D+Y0\2K