let赋值始终不成功求助

bulletmarquis

回复 4# chengchow


    原来已经被批斗过了哈

chengchow

回复 11# bulletmarquis
发错一句给批判三次
而且用$也没错的，我一直都用$



   

jason680

回复 12# chengchow


using "$" is a good programming style

1. has $
  let T_A=$LA+$OA   
add the "echo" if you want debug something
  echo let T_A=$LA+$OA   
  let T_A=$LA+$OA   


2. no $
  let T_A=LA+OA
add the "echo" if you want debug something
  echo  let T_A=LA+OA  
  let T_A=LA+OA
  It didn't work for debug
  you havt to do more things to debug ....