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发表于 2012-11-13 08:48:12
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1判断语句; T6 e9 N9 r# _) ^8 Y3 v
if <condition> then9 a% I6 o3 b& k3 ]! A$ L
<statement sequence1>;
" Y7 c5 d! A& W m( M6 R+ _ elseif <condition> then
; @7 G1 @4 B9 }& ? <statement sequence2>;
# \, L) k# l; l" q D6 Z- A5 D( h3 o else
; G7 B7 Y7 C0 m: \! V' ?" X1 t! h <statement sequence3>;
. z; U3 }6 O+ G5 H) s end;
+ j4 X1 |* ]; p如果分支比较多，用：
& \# ~6 t( W( V inspect <expression> u& \' j3 M; N
when <constant_list> then2 D) ^2 Y2 s8 K7 F- C6 }& p
<statement sequence1>;
7 S R6 U. Z9 r when <constant_list> then
" C0 o! [) Q/ K \4 w <statement sequence2>; R- k" F3 |/ [8 X
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else' Q) J7 M- v3 A( Q* i+ ?/ c
<statement sequence3>;
& M% E+ B# h! N0 kend;
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2循环语句
1 W6 ]$ n3 p/ Z! \* ? (1) from <statement sequence1>9 p9 G* Y D% N* c
until <condition> loop
" w5 R# m5 f5 ?8 s: S! A4 a$ u <statement sequence2>;
( c* F+ P0 C: C+ s) d end;! e- B5 ]! b5 B$ h( E$ k: v; ~
(2) while <condition> loop# H4 [7 k5 V5 c7 \( B$ f8 \6 x
<statement sequence1>; l. c' t; V2 L) { k' G
end;/ k5 ?' k. e4 u
(3) repeat ) Z! H9 J# j) O/ h
<statement sequence1>;
: L6 n0 A/ F; l$ e until <condition>;, }/ e Z6 t' {# O
(4) for <condition> to <condition> loop& `8 h/ u( a% d: u' n6 ~# {
<statement sequence1>;
# h6 q8 u0 e( m9 w3 z next;2 w1 Z7 X4 B0 c3 ]; j. F
3中断语句# b3 o7 T4 D2 l" j9 f$ e, e, |
waituntil <condition> prio <integer expression>;- R5 ]: p6 s' n% {% C% C) U
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以上为常用的函数！
& `+ a: w5 H: J还有很多，如有需要我把资料发到你邮箱里 9 v/ F* ]5 B; f; v& F
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