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发表于 2012-11-13 08:48:12
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1判断语句7 T% r( t! ?" t; \, X+ N3 W
if <condition> then
% c6 R9 y4 [/ P5 ^/ V <statement sequence1>;
+ M2 @; q5 K$ r) Q, j elseif <condition> then
) C1 C6 r' F, ?& a <statement sequence2>;
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<statement sequence3>;2 {" o/ f- _- H9 j
end;; G9 Y: |0 W8 [
如果分支比较多，用：8 @" d5 N, d" J! {$ k2 z3 ?9 H: n) L
inspect <expression> ]+ Z: B# b9 P- J* V
when <constant_list> then
) V& ?, B. \+ _, c: m8 B <statement sequence1>;
* y% g9 F: K9 r when <constant_list> then. ?& O" o( }0 ^1 |/ o" ?- m
<statement sequence2>;
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else' E) l6 `& }+ j0 V. N8 z. {
<statement sequence3>;
( E5 v! M3 o1 l# {! send;
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9 l; r% x/ k% P" Y+ y& c1 z/ k2循环语句3 }6 C+ ] Q8 W# l
(1) from <statement sequence1>
: r6 j- u: W0 h) I. y until <condition> loop) p% }; I4 B, H. r# s( |0 Y; R0 Z
<statement sequence2>;+ X' P+ ^9 n; J3 F* ?8 @, Y# N
end;/ {. {7 [; J9 X% p
(2) while <condition> loop a- ]3 p7 h+ f2 i3 I
<statement sequence1>;
4 H6 n! M+ B' A8 Q end;# A' i' k1 s/ Q$ k* O" ^: k6 ]
(3) repeat
' g. W' L" [7 |* b <statement sequence1>;8 P- _5 e* H7 U1 k* {
until <condition>;* h9 U$ P) n$ r% f f F7 _
(4) for <condition> to <condition> loop
$ b4 ~0 V8 e; n' ?9 M9 }$ b; S <statement sequence1>;
( \7 Y# y- q. z# k* h. k next;
" n% x7 F: l3 ~/ ]( c' n# O3中断语句/ k$ \3 V' z9 W1 {
waituntil <condition> prio <integer expression>;
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, i+ L2 ]: n! S$ R9 _! r- ]( C) ^以上为常用的函数！5 ~% ?. j& f' T
还有很多，如有需要我把资料发到你邮箱里 : t1 j4 V4 ?; u. C! t. {
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