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发表于 2012-11-13 08:48:12
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1判断语句
' @8 U/ n) X* f if <condition> then" S& l' v0 Y5 s# y) M
<statement sequence1>;
% M9 |7 Z ]$ K: M# | elseif <condition> then' b0 C [, ^" c) ?* q9 j. _9 G
<statement sequence2>;
6 h3 ?# X$ t/ G1 E else
6 H4 r+ Q+ u# ?6 }4 [7 p! d <statement sequence3>;% u' H4 w8 c# w7 q
end;& |7 d# j( M- ?
如果分支比较多，用：
7 I8 Z. ^% x$ \" p2 F, V6 W inspect <expression>
- L+ b. |* {0 f7 j1 A when <constant_list> then; Z& U$ c3 Y! |* k/ R4 i
<statement sequence1>;
/ p( t7 G, ?+ X when <constant_list> then
8 j2 _* h( h' i5 S: }# h, S <statement sequence2>;+ j' s9 G0 Z: Q( ]4 [' f5 e
...- h; H& a7 i* u
else' k5 A0 Y {' u2 {
<statement sequence3>;
3 u( o" d! F5 B5 ^% {0 y" Wend;
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( R+ e1 C! Y% c2循环语句+ M F* i! t0 x
(1) from <statement sequence1>3 M) ~5 D% N s; O
until <condition> loop
/ q6 u9 ?* K8 d7 x' m <statement sequence2>;$ `3 f, ^: y+ ?) _$ v
end;7 Q. t: }/ U" U# q2 P
(2) while <condition> loop r6 n; c/ p2 P) Z1 |6 O' ^
<statement sequence1>;
7 A; Z5 I* s# {( a1 D& B end;
$ C c6 J* W1 F (3) repeat ( K) v% y5 q$ t1 G U% u
<statement sequence1>;0 h2 G! u& w' K9 o3 K7 K# B+ L; ]
until <condition>;3 j/ I& t7 V) w0 A; `. K
(4) for <condition> to <condition> loop: U* ]1 a) N, v; D
<statement sequence1>;5 y# \, b) s/ U: D% e
next;; M7 u1 k% i: T4 U3 W5 C( a0 v
3中断语句, `9 n0 o+ {7 a2 f! {# S
waituntil <condition> prio <integer expression>;
# a' ~$ L; _7 \" s* Y- J5 | ^$ E" O$ w5 ?, u6 u: P- x! l; \( A
. a5 E3 q* Z+ }6 z' y5 n以上为常用的函数！( Y0 X ^9 _- v4 f
还有很多，如有需要我把资料发到你邮箱里 ) v: N( ~' k3 B* g6 l
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