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发表于 2012-11-13 08:48:12
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1判断语句
+ n8 H7 K, @$ Q if <condition> then
4 ~1 g2 v/ a6 a <statement sequence1>;- e7 ^( Q, E& u5 A; H) c; K( W
elseif <condition> then; r, V- _! F2 P$ R/ F3 [( V# ~
<statement sequence2>;8 {$ @( M, k% t, D
else " K6 C# J$ ~& M x, {
<statement sequence3>;) X1 \/ s) d8 ]5 U# J* p+ H
end;( R+ q! S: Z) _& I- Z* p6 W
如果分支比较多，用：
) P0 L! ?: C6 { inspect <expression>
* D- Q: ~5 j8 I when <constant_list> then
/ |- l+ o8 a4 i2 a' Y <statement sequence1>;! J; b; e$ _2 {9 G8 |
when <constant_list> then6 ^. ^1 }& _8 k5 H8 D
<statement sequence2>;. t s6 x2 q; i
...
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<statement sequence3>;4 b8 F6 c; L0 f! N$ r! ?/ L4 }! e; j
end;
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+ ]2 J3 i, n! K @2循环语句
z5 R% u3 z t (1) from <statement sequence1>
# ^+ O( s- F, W" ?1 u- W6 c, u until <condition> loop( w; e1 u4 E" I* f0 u
<statement sequence2>;9 C. B8 a; U7 _/ N& H" a y
end;
; U+ l/ M s9 j$ k- T% y (2) while <condition> loop. G0 E- i8 T. m% _/ z
<statement sequence1>;3 r4 ~6 B1 v# T: I( a
end;; g- q! G, S; }9 y2 \
(3) repeat 1 I) @3 O. S+ A( X) ~
<statement sequence1>;9 m9 s# u0 @. `# S7 `* r3 Z8 {! U
until <condition>;% m& i9 R( P% A* H% v3 ^
(4) for <condition> to <condition> loop
" E2 v, a9 a) y) W <statement sequence1>;1 w' V" \5 j$ \ s. K) r- L
next;
) @4 b! J+ {0 F) ^7 M' ~7 Y3中断语句
: Q1 p H3 [9 K waituntil <condition> prio <integer expression>;
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以上为常用的函数！- T+ d1 J& N5 b; Z
还有很多，如有需要我把资料发到你邮箱里 7 o% b: e! P& O: J/ U4 O
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