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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
0 \6 f- S; H3 a elseif <condition> then
7 |6 X1 }: u& v) [6 p <statement sequence2>;/ d& Z" [* G; d; C
else $ r& w7 l S$ p% e4 V
<statement sequence3>;5 V5 i! z: ^: }' q
end;5 B W, |/ [; f% d7 M8 ^
如果分支比较多，用：5 ]- b6 ~9 B: @6 E, e
inspect <expression>
, c r- r% W) z; c) i when <constant_list> then
0 z# G9 y" G4 V" m5 A7 F <statement sequence1>;+ R1 h5 N% n L8 {, B
when <constant_list> then& J) V) D1 Z* F/ X) i v
<statement sequence2>;
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else6 C( E+ R8 U g/ `* G* b) D
<statement sequence3>;
4 J5 c3 H, K* j. Q# D; ^end;3 _' v, @# ~/ \8 U* U3 c1 c8 G% G. d
" G" H, {, o9 B& U1 g* o* V' l2循环语句
4 X# E: G( ^& N) s' ~, e (1) from <statement sequence1>
9 _+ W0 K1 G/ d3 E: G# s% H until <condition> loop: i% E5 p- S, h0 V
<statement sequence2>;
/ x, U( M0 a9 ~* t$ w end;
5 ?! I7 }2 A6 C0 N (2) while <condition> loop
) b9 q# X; b# L7 \ <statement sequence1>;
" d- t5 N0 R+ k& j& z* | end;
7 U# L, G$ k* b: {1 n+ E+ o3 @7 v/ Q. O$ k (3) repeat ) g4 ?+ n0 m: h+ ?1 Q
<statement sequence1>;
. u! {- T7 W& \5 t" a4 n6 o1 S until <condition>;
q* _9 ^& T. r8 m. Q (4) for <condition> to <condition> loop
: p, M$ q t1 B2 u <statement sequence1>;/ ~6 T, Y0 @3 |; _, Q
next;8 E( H# D& b$ u: Z! a6 V2 P; R
3中断语句$ g7 S. L d( l3 d- w7 m
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
* G* r4 F) s/ x5 `# }8 D' X还有很多，如有需要我把资料发到你邮箱里
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