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发表于 2012-11-13 08:48:12
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1判断语句8 X! C7 o/ I1 Y4 r# V6 F; b
if <condition> then5 y7 o" G5 h1 K0 Q8 H/ v& @
<statement sequence1>;2 I# m& T8 n/ d8 n4 S% G; r- @: ^( ^
elseif <condition> then
: G- L; D. S: O' j }, o <statement sequence2>;
U# F z$ G8 f; a4 x else
0 |- P" {5 E/ r <statement sequence3>;
2 d/ C4 P- C, {% ]2 p9 i! o* N end;
+ B; C2 \0 j& A如果分支比较多，用：
: H, x% o g, m4 e+ Q/ A! z5 g7 j inspect <expression>
5 E) F" Z0 O( i when <constant_list> then+ }4 v$ K' P7 B) P" ^
<statement sequence1>;
" \7 v6 y ^9 _; x- C when <constant_list> then/ D" i& v' ^% I) ?! }4 H) Q
<statement sequence2>;
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else x* F5 g7 Q- V, F+ Z
<statement sequence3>;
% C |$ K) }3 j* A9 Qend;
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1 U# V2 t8 u. K: @. Q: r, ] e2循环语句
; U2 W3 q6 G; b% x; F% f8 r (1) from <statement sequence1>
2 y7 H, _9 W m6 k# A; B6 \8 M until <condition> loop
$ t. Q/ u) x% R: X9 t6 I <statement sequence2>;0 Z7 z/ H9 ]0 f2 w
end;
A/ B' k& U0 q% B7 q# ^$ M (2) while <condition> loop' B( f/ X$ m3 N& O) E9 M+ m' r
<statement sequence1>;
# @2 u& a% v& r) X7 y5 | end;
0 W! C1 `- a. _9 O2 S: b- A+ r0 g' Y (3) repeat # M4 I1 g7 @$ f1 i" p! R6 [* y4 g
<statement sequence1>; A9 J! S. \9 |: `1 Z; [% o6 s' U
until <condition>;. N+ x0 Z, Z0 E G
(4) for <condition> to <condition> loop! @( V7 Y# [; E( g9 z; B! @+ ]
<statement sequence1>;1 p$ a- N6 x3 T) D9 j
next;
f7 `4 k! J# a H5 \3中断语句
7 w- q5 H( ~- \8 u/ t waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 w% |8 m7 K% u! z还有很多，如有需要我把资料发到你邮箱里 . k' y# C* R9 j, D2 L3 X
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