REPLACE...IN.....WITH....   的使用，例子用于改变alv的gt_fieldcat_alv

LOOP AT gt_fieldcat_alv ASSIGNING 
     
       .    IF 
      
       -fieldname = 'DYLLKC'.      REPLACE '所在月' IN 
       
        -seltext_l WITH lilun.    ELSE.      SEARCH 
        
         -seltext_l FOR '当月'.                       "如果
         
          -seltext_l中包含‘当月’返回sy-subrc = 0      IF sy-subrc = 0.        REPLACE '当' IN 
          
           -seltext_l WITH l_month_curr. "在‘当’后面插入变量l_month_curr ENDIF. SEARCH 
           
            -seltext_l FOR '次月'. IF sy-subrc = 0. REPLACE '次' IN 
            
             -seltext_l WITH l_month_last. ENDIF. ENDIF. ENDLOOP.