中文说明：
编程计算 线阵组成边射、端射和增强方向性端射阵满足的条件及方向图函数的增益、副瓣电平、半功率波束宽度、零波瓣宽度。
English Description：
Program and calculate the conditions that the linear array is composed of side shot, end shot and enhanced directional end shot array, and the gain, side lobe level, half power beam width and zero lobe width of the pattern function.