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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
2 _9 q. |$ X v if <condition> then
# Q# g, S" G r9 x+ S <statement sequence1>;- n% m ^" G0 O/ M) ~& W1 ~
elseif <condition> then
" o# J) |, U4 y5 \( Y( A <statement sequence2>;
+ n2 S9 h2 Z* |$ `: b8 S else ; W7 S2 r: d4 a1 n9 o# I- O
<statement sequence3>;% B- `! o% e, |& _; l( a
end;! C0 \' N0 D) u9 `6 Z
如果分支比较多，用：" m6 G/ @* E! e6 \: ?* h; @
inspect <expression>; s9 W) P9 M/ {, h/ B D
when <constant_list> then( p! K- x2 J8 ]4 d' a4 B7 R' ]
<statement sequence1>;" _ ]9 i4 ]7 M1 ^
when <constant_list> then
4 Q& f, B, c" ]- l4 U# L <statement sequence2>; T4 ?; D4 t1 _$ D
...6 _* c9 x$ n1 O! b9 \! H
else
4 Z+ ^6 e( t. J& Q <statement sequence3>;6 N5 k- m8 W# r8 r
end;8 B& ]) V7 {: @+ w' V) L" Q* d4 m0 I
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2循环语句
3 i, ]% ^+ j4 {- x( A, J (1) from <statement sequence1>
& ^6 p+ s9 Z& L until <condition> loop
6 N# l# Y! J) E" n <statement sequence2>;& B8 v/ \+ D6 ^% h
end;% |1 G; C l1 k5 E
(2) while <condition> loop, l6 _: _& I% c# I& O8 Z; R
<statement sequence1>;5 x5 i. K, e1 t7 `0 [. ]$ V1 |9 u8 [ h% V
end;- q' ? x" D9 j) x* z( F$ N1 V
(3) repeat
, `2 E% c8 _$ p: d2 B! L- E <statement sequence1>;
: s4 G/ m' y+ g) q g. p# g: l1 w* Y7 D until <condition>;; U% s, q5 `& Y3 G; L
(4) for <condition> to <condition> loop0 F5 q; {9 a2 s. z/ F' f7 ]
<statement sequence1>;/ x' k! a7 {8 N/ O
next;
( o, ?0 }% x* z$ W% Y4 _6 ~3中断语句
3 L( h" u/ C0 X4 s5 @2 v& @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 U X5 ?- h2 ^: ?2 `* H5 `6 z9 b
还有很多，如有需要我把资料发到你邮箱里
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