说明：  计算太阳辐射的程序：(1)计算太阳在水平面上的瞬时辐照度和平均辐照度；(2)计算太阳在倾斜面上的瞬时辐照度和平均辐照度；(3)计算太阳的赤纬角、高度角、时角等。
(Calculation of solar radiation procedures: (1) calculating the horizontal surface of the solar irradiance and the average instantaneous irradiance (2) calculation of the solar surface in the tilt of the instantaneous irradiance and the average irradiance (3) calculation of the sun s declination angle and a high angle, hour angle and so on.)