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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% K; U5 w$ K* ^' J: k9 q" s1 O if <condition> then
: C9 M: e, T$ s9 R$ c" R3 B# u3 P <statement sequence1>;
4 k/ R d9 o5 L6 s- I elseif <condition> then" }8 @4 H! Z; L9 H* n
<statement sequence2>;
; q. _- G9 ?* i4 y1 m4 c. F else % e$ S7 x! f* X: F" \; P
<statement sequence3>;7 j P& t' Y5 H, x r1 Z( X8 z& v
end;
Q; ] Y7 w8 i4 W! H如果分支比较多，用：( K6 a8 i$ L' U
inspect <expression>' j# H' P; n8 e8 O
when <constant_list> then
1 m4 }. w5 s( y9 \- ?) Z <statement sequence1>;
1 R) E! P3 h6 T5 V when <constant_list> then
2 H4 L7 A/ s! x# q9 a <statement sequence2>;# R+ G" i) U) O6 _1 v* U# o% j
...
# v. O+ K9 o3 n4 }( U9 p f else
3 h% N* s: o# S. a <statement sequence3>;2 I: w; K; U* \" }- q. A
end;) F& v q9 e5 O7 V) x1 ^$ Z
' L9 i# w; ~/ R8 ?# ~% h0 _ d2 @2循环语句/ e. g$ u) j- B& x) d' y
(1) from <statement sequence1>4 a& z8 o: C1 @; c
until <condition> loop4 z: l: G- ~+ ?! D; M
<statement sequence2>;
3 Y" x( C) G* S" m% L1 f* B) S) p X end;# F) l+ J" c$ u" Z* L
(2) while <condition> loop
1 @- c! P n7 Q: e, [ <statement sequence1>;
/ d( _- A& ]1 v& y end;2 i R# {) v9 \( u7 J6 f5 h- N
(3) repeat + E' ~8 m) _6 r4 y' n! {
<statement sequence1>;2 U3 C" K% d1 y: e! S9 B4 h; U5 A+ I
until <condition>;& v. Y* A5 V$ w! h. d2 H* ?. {0 |
(4) for <condition> to <condition> loop
5 s+ ?8 o) L8 X5 G7 D8 h <statement sequence1>;1 {2 p7 ~4 @3 d0 h0 {3 S6 J
next;8 X7 x9 {' _& m+ _& Q6 Q E ~, p
3中断语句
, U% B' f* t$ G: b( i. X" x) g waituntil <condition> prio <integer expression>;1 \7 c2 `8 V, C
$ |; {% i$ s/ T* d/ h( L1 ~
2 S' X6 N' R. k5 y5 Z7 F以上为常用的函数！2 H- l6 m5 k: l) n0 v9 C
还有很多，如有需要我把资料发到你邮箱里
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