代码语言：javascript
复制*定义
… SWITCH dtype|#( operand
WHEN const1 THEN result1
[ WHEN const2 THEN result2 ]
…
[ ELSE resultn ] ) …
*案例1
DATA(LANGU) = SWITCH #( SY-LANGU
WHEN 'D' THEN 'DE'
WHEN 'E' THEN 'EN'
WHEN '1' THEN 'ZH'
).
CL_DEMO_OUTPUT=>DISPLAY( LANGU ).
