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发表于 2012-11-13 08:48:12
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1判断语句
; g, O- x+ n' `, ^/ o if <condition> then
7 C& [/ Z1 z9 R2 v <statement sequence1>;; U* A ]3 u1 t6 ~$ T" e; m' ?
elseif <condition> then
" ?! J' l |, f <statement sequence2>;& r0 K( \6 ^0 l% O- a; @ P' ~6 ~# @
else ; A! E9 g4 P+ D2 C# g i
<statement sequence3>;
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如果分支比较多，用：* g7 W+ |6 a* }; a" D5 k3 R
inspect <expression>6 _* d4 l/ Y; a3 Y, X$ X0 q4 }
when <constant_list> then
B5 e" h3 Q5 C* W <statement sequence1>;% ^9 j, Y2 r; K0 `% ~
when <constant_list> then
1 W- j- x% B' F7 K! T <statement sequence2>;. [& t' z- M; ~- t! F6 P6 `
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else
: X. Y. F. b* O3 J( a- e$ @; [% b <statement sequence3>;+ b/ K; @7 a2 w7 q
end;9 ~3 J9 I* @5 C% R; z5 f2 K
$ `7 `: }2 b4 a+ Z: G2循环语句
. n8 L( D5 i' f1 S, p$ G (1) from <statement sequence1>0 _! c; H7 O& `- ?: b O; V
until <condition> loop
5 {! N9 A% S, m) P <statement sequence2>;$ c& m$ H. j Y- O% x9 l
end;7 M1 V9 Q/ C# g" Z
(2) while <condition> loop
0 D; |: \; C$ Z; }* j& @5 ` <statement sequence1>;0 _1 w% m. @* \& K- J" G
end;
. C/ m+ l/ c/ h# c; s) n _ (3) repeat
9 o) o+ }9 t8 q1 e( c/ D8 y <statement sequence1>;
- \8 @' W; ~. b. r- |; G8 D: H* N until <condition>; S$ t7 M* T) A3 H) u5 O( A
(4) for <condition> to <condition> loop/ {, x: {, a4 |$ g ~: o' A# d
<statement sequence1>;) y0 e9 ~ g# ^
next;
+ S( o7 `5 ~3 k, J3中断语句! |8 \" r' \# Q3 s( q/ I
waituntil <condition> prio <integer expression>;) ?/ G- ]9 a, f0 M% }
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以上为常用的函数！
9 {, A$ f- _; s3 M8 ]还有很多，如有需要我把资料发到你邮箱里 ) U. N" i; g+ i& N. b: X# ]
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