这个提示是什么原因造成的呢？

滕小辉

KILL code number        Overlay number    Nearby statement number
   422                          1                         0
/ J- c3 q+ v, g2 a9 d0 ^+ qKILL = 422.  
3 T! h0 l, Q0 V/ V; f9 t$ [The present statement is interpreted as a value assignment statement, and the preceding name is interpreted as a variable to which a value is being assigned.  The identification of this variable is interpreted as complete, and should now be followed by ":=",in the following format: variable_identification := expression