可对CAD中的多行文字分类求和，算出计算结果-Multiple lines of text classification in CAD sum calculate calculation

可以通过CAD命令行 输入 TT 选择CAD绘图区中的单行数字进行求和-Can choose CAD drawing by CAD command line, enter TT area of the single line Numbers sum

可以通过CAD命令行 输入 XH选择CAD绘图区中的需要进行编号的器件，按提示操作即可-Can choose CAD drawing by CAD command line input XH area need to be in the number of devices, according to the instructions