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发表于 2012-11-13 08:48:12
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1判断语句8 B8 T: g& Z0 v
if <condition> then5 |5 @6 j3 C1 f* w$ ^
<statement sequence1>;
) [5 `* X/ ^$ r! U elseif <condition> then
/ y+ X5 w$ r- h& N2 D9 E1 } <statement sequence2>;
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<statement sequence3>;
- Q6 \, h4 X; J! U end;
7 k; \& m2 U# ?如果分支比较多，用：
7 K; p' y$ n5 \' [' e+ X9 D: h# q inspect <expression>5 n' w: T+ t ?; _9 y9 K( ~- b+ B
when <constant_list> then6 ?) M @- z1 J& d
<statement sequence1>;
/ T8 I; m7 c5 R! U# |$ A) \7 u3 e when <constant_list> then
4 m" H6 j+ o% o2 U* ?# \ <statement sequence2>;8 R2 G2 Z" l O) e" r
...3 j$ k9 @4 A# c
else
4 L# L* C& g3 k" U) u <statement sequence3>;* h9 Q1 [- h; ~# a; I( p! U/ s
end;$ V6 B! |9 F1 N3 k. |/ E
' N* @0 o1 A8 B8 R) m; R- e2循环语句
- P! L# Z$ X( U2 A' @1 {. y$ g (1) from <statement sequence1># e D1 P+ [& U4 K/ c F$ C7 g
until <condition> loop3 W7 C/ d% D9 l/ f
<statement sequence2>;6 T6 c4 w! j! E7 o, b
end;+ _9 l, }2 W- s) }+ X6 s3 r
(2) while <condition> loop- t9 |8 o6 W3 Z; q, j$ P' C
<statement sequence1>;2 F2 a3 g5 ~& k
end;
8 L* q5 [" D6 u& A* ^ (3) repeat
G5 x$ l8 a( Q <statement sequence1>;, r0 l# X' x: t/ U& y( `5 z
until <condition>;3 `! } y" a5 B% T& q
(4) for <condition> to <condition> loop/ W* O5 Q3 O: g/ q) D6 q
<statement sequence1>;- S: [- `, i4 Q0 |3 ^
next;4 `% E7 F' W. p0 q
3中断语句
9 J1 H/ A+ m$ j' A+ A$ c waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 ]0 t, y' b, ?1 m; d9 G1 S; X( q& d
还有很多，如有需要我把资料发到你邮箱里 [# T( M" H" @6 B+ {+ h
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