摘要：
string ls_msgchoose case error.number case 1//by zero ls_msg = "发生被 0 除错误" case 2//2 Null object reference ls_msg = "空对象引用" case 3//3 Array boundary exceeded ls_msg = "数组越界" case 4//4 Enumerated value is out of range for function ls_msg = "枚举值超出函数的范围" case 5// 阅读全文
