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发表于 2012-11-13 08:48:12
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1判断语句
1 _2 l9 U& S9 C6 f/ L if <condition> then7 y$ i) V2 Z; U9 r0 Q( w" C
<statement sequence1>;
* K, j) f; A# h+ h% p elseif <condition> then, R! w" ~; I# M) A
<statement sequence2>;( N+ _9 I Y1 ~2 C
else , _/ z9 c3 Y [5 d5 J; s9 @' K
<statement sequence3>;, k( y; x" _1 C+ R O W% p
end;3 Y0 j6 ^2 i0 l5 |$ H' D: e1 C X
如果分支比较多，用：- X: C# {: D* D" s9 r* |
inspect <expression>0 ~" I# T2 v. a0 d& r
when <constant_list> then
: l3 m# ^0 {5 F1 h% o7 n% p <statement sequence1>;
8 O- C: @- ]1 Y; v when <constant_list> then
# H4 n: A5 ?& e: C: `( ~6 Y <statement sequence2>;: c6 `& X& D2 B$ H: A
...: \9 ~* v7 M W. _
else
8 Y5 h; S+ A& ?1 |8 e# x <statement sequence3>; h, C# K) X, J
end;
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0 }6 V$ W4 P: N# h2 p. `2循环语句0 B: f9 Z K. s& z9 F
(1) from <statement sequence1>
+ K9 ^5 C3 Z+ L& {/ m; E* C until <condition> loop. Z" z1 }; f: y! o {1 C: m: q
<statement sequence2>;9 P( ?8 E8 ]6 `4 C F" O p
end;
6 ]( e) ^% u7 ^* X, p( { (2) while <condition> loop t& m" C9 c0 R% [5 A( N) w
<statement sequence1>;0 j% d3 r) l! w. g) I4 s
end;
% y& z# z) a8 V* y/ P1 ~ (3) repeat
4 E, F0 y2 R ?; c7 C0 M <statement sequence1>;
v" E2 k, w7 E. g3 X until <condition>;5 z; ^: }2 _* _ I: { L/ g
(4) for <condition> to <condition> loop
5 C4 R5 R3 [' ~7 v6 G+ }* t: H <statement sequence1>;9 u# x% W" A: i: @6 a8 i1 c0 {9 ?
next;, B- F9 U; o$ S3 t8 P% v
3中断语句0 |3 y4 B, }' {; v- q6 z9 t- V
waituntil <condition> prio <integer expression>;
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G, Z$ N" J' _2 Z& l. U1 T5 X0 H7 d% w
以上为常用的函数！
2 s2 d( R1 C$ j$ A/ b还有很多，如有需要我把资料发到你邮箱里 5 I6 G$ w1 U% Z+ B3 y
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