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发表于 2012-11-13 08:48:12
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1判断语句
( d) a; g9 N1 s9 { if <condition> then; y8 u5 n7 z* ?1 \
<statement sequence1>;+ `* ^8 _3 ]% ]1 f" W. X8 K; G
elseif <condition> then
) d. y* i2 A' C; k! C( q' n <statement sequence2>;
* K7 v) z& I% M7 x6 w& U6 m else 4 h6 ?/ [; R. t. C0 V
<statement sequence3>;5 K9 |, N' E. C- `& q/ q
end;' `# B: D! r& J; j' ^' V: s: h0 w4 U
如果分支比较多，用：
7 `3 c( p* V- q4 k9 w# J inspect <expression>
0 i! K, ]9 Q2 [ when <constant_list> then
+ @6 T, h& A5 s* P. U# b/ T0 S& m <statement sequence1>;, O$ g' Q5 p* k* ^" a: O
when <constant_list> then/ b" R) q( z* c' `5 A7 ?
<statement sequence2>;# M! G1 d) R* Z) i
...% g% a' i7 r: R! v5 T0 Q+ K
else
% b9 c8 I; S1 g6 H <statement sequence3>;
( e- O$ p) z1 |end;3 r1 D: p, A) d( M
3 l. Q- A' ?, ^% Z2循环语句
8 D: ?3 |+ Y! I/ o (1) from <statement sequence1>
/ z* r& C1 O; N, t* k* k% i until <condition> loop; o' a g' L4 H" ]" }$ v a8 M' `
<statement sequence2>;
4 f0 s/ Q/ S6 ^/ ^ end;
8 q- l) @4 l& b7 T# r (2) while <condition> loop/ o3 b2 n8 P7 T
<statement sequence1>;
" u- ? V& Y1 {: c& W; N" U- [ end;4 |6 V: Y7 x" J, E7 H" W
(3) repeat - L ~: g+ y6 X3 c6 z' r* X- L @
<statement sequence1>;4 R3 C7 \* H) M" ^% W2 u& y% O: }
until <condition>;% e* G* G3 f; L4 P% x$ h( w: `# A
(4) for <condition> to <condition> loop
9 \* {) U8 n/ P0 B) u5 Z4 i- t7 k, X <statement sequence1>;
/ V$ n: s3 Y2 V% e5 E% t next;* `6 Z: p( F; p( Q l
3中断语句* {. u I0 @* t4 w% a
waituntil <condition> prio <integer expression>;! B, j* s& |% [# h- J$ F" c
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以上为常用的函数！8 E9 H" O7 m( ?% a \; V0 H
还有很多，如有需要我把资料发到你邮箱里
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