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发表于 2012-11-13 08:48:12
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1判断语句% P- l% j; k) T0 q7 C0 O+ T' ?
if <condition> then
9 F& M h: K) [ <statement sequence1>;
7 K# d1 `. L, Q. j elseif <condition> then
& o1 t. r+ c' A) c <statement sequence2>;7 N3 A$ Z, \1 o7 l/ w
else - E3 ?' ]# C. Y% E& R% s
<statement sequence3>;. l* m4 V, t& d+ A
end;
) \% c, M, j \: E& f# M* g3 ?* ~/ f7 {如果分支比较多，用：
: u1 v6 e5 Z4 v% @. r4 B inspect <expression>" X+ \1 A5 T( \' H3 u4 p
when <constant_list> then9 Q& w8 E/ g" b1 [
<statement sequence1>;
D, a2 S8 Z! ~6 J1 A% x, `- k/ S when <constant_list> then
& H4 v0 A' F: t J' l0 [- H <statement sequence2>;- R9 U% ^8 u& ], T5 V- `
...
' M5 p+ ] |% g W0 U/ D( N. G# E* { else
3 H8 N/ W- b% K% O" c <statement sequence3>;/ d7 ^1 [4 o: Q6 w
end;0 t2 Z$ U; @% f6 U
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2循环语句
- S5 z( ^, S% j: e* k* y$ [6 j (1) from <statement sequence1>' n( H9 Y; X6 E" }; ~/ [
until <condition> loop+ H( b6 C( Y# p$ y
<statement sequence2>;" R/ D' U# ? e$ z3 z7 x9 w, N; N! d
end;) r+ n: g8 A2 o d6 Z
(2) while <condition> loop
. u- j" G" H; R# k4 T! } <statement sequence1>;
8 E6 ~) ` ?. @' g% h4 o end;
# m. Q) |& I4 s* `) G (3) repeat
8 Q* V4 R' g# B* O3 d: T <statement sequence1>;
5 ^' R' l5 x3 @, W- y+ V' G$ @ until <condition>;
9 {; V7 t, a4 J: x( c9 t (4) for <condition> to <condition> loop( g+ d2 S, A. |. L' ?/ x
<statement sequence1>;# F0 G: d" n+ ~: q& z0 x
next;3 G# z2 }' |/ L4 \& {: C
3中断语句
$ S; P* u1 M. K% R6 m$ U5 k9 C waituntil <condition> prio <integer expression>;
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6 ]( a- M P. @ C V3 D% O4 F! m以上为常用的函数！
$ M ~6 }5 T! W还有很多，如有需要我把资料发到你邮箱里 & @8 i3 L" K3 `' p! G; `% D
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