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发表于 2012-11-13 08:48:12
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1判断语句. ?/ [3 |5 i6 D9 b+ \" x3 n
if <condition> then& Q, Q5 \1 V! U' M6 \) l8 D
<statement sequence1>;2 Q0 i/ i9 I2 v; e, n7 U
elseif <condition> then6 }/ N( Z; R/ u5 K1 a$ p, Q9 ]+ V
<statement sequence2>;9 Y$ G( I$ F5 `
else
+ V0 W& W u6 S* b, C* F8 ] <statement sequence3>;: F2 t |3 Z0 B# f
end;
i7 s/ x4 T' ]* w: s0 q. Q! g* j# _如果分支比较多，用：
0 L9 f* @: E, D. w, T# n+ _. H3 t inspect <expression>, G; g( i* t: l% k2 T
when <constant_list> then
8 \" E& t# y3 z' b$ R7 ?, w7 b <statement sequence1>;& I( Q6 F5 [+ C' N
when <constant_list> then
6 r, X# t9 W8 Y <statement sequence2>;
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else- P7 s! v5 A) Z) V& C1 v3 S. K/ o( P
<statement sequence3>;
+ \. Q3 e2 P4 z6 I* eend;
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2循环语句# F$ X; q; X g
(1) from <statement sequence1>: S. \- `# b' Y* P
until <condition> loop, B' G+ l3 M4 R9 s) g( M) L3 w
<statement sequence2>;
8 u/ V3 K* P1 z5 Z" _2 s0 g3 m end;
9 L: X z( f% C" |2 W (2) while <condition> loop
! v+ H0 b2 ?9 I& o+ j <statement sequence1>;
) ?: e6 C, r; u end;
( @' k' C9 P9 [ (3) repeat 5 g1 X/ _" t2 |
<statement sequence1>;: I- V6 S% O' _
until <condition>;& s4 w8 E0 Z% U) y; k1 D' |
(4) for <condition> to <condition> loop1 ]% v. `' d R
<statement sequence1>;3 T( g6 h. X/ O
next;) V6 ~- X; ?6 e- R G) \- N5 k
3中断语句
- X7 u! Y* \* t {0 m3 W waituntil <condition> prio <integer expression>;, w4 _: P, F6 g+ Y
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, o* c' U9 W: ^
以上为常用的函数！
9 c; `2 Q; q, x2 b" Y还有很多，如有需要我把资料发到你邮箱里 5 y P2 }& Z6 h( Z
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