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发表于 2012-11-13 08:48:12
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1判断语句! T' Z' q0 F2 K
if <condition> then7 W! f* K* h3 R- |9 r. D
<statement sequence1>;1 I) m9 M0 e& L; w! N1 I
elseif <condition> then; d+ l7 r* H+ l
<statement sequence2>;6 D' H# E6 q3 e$ P! s
else . o0 ]% {6 p; C# G8 g3 k. R! B
<statement sequence3>;! Q V' r% H, G& R1 y
end;
; p. {9 @5 F9 r1 L/ t如果分支比较多，用：! R1 |/ u0 {2 S8 Z W, X+ c
inspect <expression>7 V" t2 \! H, c" i
when <constant_list> then
* R0 g8 j; D5 M5 w* r) c, C% S1 [ <statement sequence1>;
; M5 p) A b3 w0 M& `* v" c1 P, R9 N2 O. ] when <constant_list> then% B8 e0 |7 f W$ a: [6 \% H: G
<statement sequence2>;/ w7 C- W# o. p- c
...) G6 I; z( V# m1 d& N
else
8 l+ ?6 h) e' x+ a; M x4 v <statement sequence3>;
$ H; Z5 x3 B; J/ J& xend;
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8 V# o) H) |# r. a- j5 q2循环语句0 J$ S7 V1 k5 w7 t, p
(1) from <statement sequence1>
u6 \2 ]( h$ y until <condition> loop. l1 N3 p% Q0 o( r# w+ h' X
<statement sequence2>;
. @7 N- @0 K5 m0 g% Q% t! K end;% N9 @7 Y5 A& q( w, X6 X% b0 l* M3 i% R
(2) while <condition> loop3 I* _( K5 G$ \6 A# O
<statement sequence1>;
1 U3 j9 h0 p7 S& s8 U end;; F- z5 Z$ p. i2 o1 D C
(3) repeat / e6 t; T( W! m3 _ W; \8 g
<statement sequence1>;6 `6 U( e3 B X9 z& |0 U' P; v
until <condition>;
; k; {/ I7 _$ X6 L8 z (4) for <condition> to <condition> loop! W5 h( {* s8 s
<statement sequence1>;0 j, I5 [+ U' o' u @
next;0 ~# `: u- A; {# n+ R# B1 d* v
3中断语句
' D4 }1 F5 t8 P4 U' H& a8 F0 `( Q waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ E/ T: l7 H2 k8 Q" M5 d9 \: Q
还有很多，如有需要我把资料发到你邮箱里 H4 i9 ?$ X+ D1 ~& V3 h4 X
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