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发表于 2012-11-13 08:48:12
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1判断语句
) e2 v f8 i: b. A; P if <condition> then7 F- I$ ^0 j W7 M/ [
<statement sequence1>;6 C2 N2 X! {# _
elseif <condition> then7 e3 c* m2 B; J1 f* Z
<statement sequence2>;7 `7 X" E" \4 T$ A$ V) n
else
" G5 A, {0 @8 |; J# I <statement sequence3>;- @! v/ d8 d: X* Q: p, i I
end;
4 ^9 o |( S, G. R2 ]如果分支比较多，用：2 M# r: O3 q$ T
inspect <expression>
6 f0 j4 f; Z4 E" z1 [ when <constant_list> then$ l/ j7 S. w7 C, V) G% ^4 o% B' W
<statement sequence1>;, K& \1 l! d9 D$ N* Q+ `
when <constant_list> then
: I- r/ Z# d8 N3 @ <statement sequence2>;- L# l$ O* }3 O* g5 U# A% E
...6 D3 D; O9 l) }+ G# ]9 C
else9 M3 ^5 }2 x6 F% ~
<statement sequence3>;
' a3 I- `/ N5 jend; R- a6 J3 I! z6 B _ E, s
2 e' G& }$ y2 f, K9 Z2循环语句
* m: ~9 F: P5 Q% n; A( z3 Q (1) from <statement sequence1>
2 X+ k4 ^+ U5 @ until <condition> loop+ e4 g3 E6 ^) j
<statement sequence2>;
- m; U) x8 v. @7 D% T1 R9 J0 B$ _& G end;
/ j5 r ~( y' D2 ~5 `/ S; R; ~& ~ (2) while <condition> loop
8 ]/ F9 z8 j y+ @ <statement sequence1>;
; U" Z% a+ h3 D% {5 Z0 ^8 O$ x end;
- i' \9 V- t. Y6 D2 X (3) repeat $ e3 \2 o. H( C4 }5 G. A3 B$ f
<statement sequence1>;0 P% y" F, T- R# N
until <condition>;6 p( q5 u3 J6 z( D+ W. f1 }9 H
(4) for <condition> to <condition> loop
7 m: r/ D b4 V; O( V8 k, U2 a <statement sequence1>;- `! g" ?( n# B/ A
next;* |$ a4 E& W1 x6 N8 X
3中断语句
2 |9 c( }- A* T* G waituntil <condition> prio <integer expression>;
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/ l4 _, d- I7 F4 f& ]! R以上为常用的函数！* S6 d7 a7 h, K ?, x
还有很多，如有需要我把资料发到你邮箱里 & D3 V) f3 U& {* b$ ]" H# G S0 s
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