使用三个独立的堆栈区域：局部变量区域，透明区域和参数传递区域。确保这些区域保持独立：不使用本地子例程变量的透明或参数传递区域（例如，不使用本地子例程变量的参数传递孔-using three separate stack regions: local variable region, transparency region, and parameter passing region. Make sure that these regions stay separate:　do not use the transparency or the parameter passing region for local subroutine variables (e.g., do not use the parameter passing hole for a local subroutine variable