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发表于 2012-11-13 08:48:12
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1判断语句
2 E" a" l: x' i if <condition> then
, Z! c3 k1 i3 S3 k0 B! B+ v- @, M" R+ m <statement sequence1>;
7 Z' ^* I6 o5 ~' H: Z5 { elseif <condition> then& _: z6 J# [! d& e, F# d
<statement sequence2>;
8 E2 f1 L) n& g; l7 O else
2 I' F/ A! z% h3 @5 |6 g <statement sequence3>;$ H. \# u. n, `
end;
) x8 \! D8 R3 d2 g" _! Y! A如果分支比较多，用：
# s6 D* }6 K7 R9 y$ u! p4 d inspect <expression>* b6 }# s( \5 N6 q: N5 X
when <constant_list> then
I3 n7 x8 ]: J <statement sequence1>;' f5 g' F( _7 B& t$ C9 ]. U, ^
when <constant_list> then
! c. R; |3 a0 O" s9 Q+ ] <statement sequence2>;6 S$ ^* U* ~- h1 ^7 Z8 m
...
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<statement sequence3>;
4 E7 w0 S, o, b5 oend;
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V. [5 Y5 e3 M: a2循环语句4 ~! O7 {$ K# C$ w6 p
(1) from <statement sequence1>+ O8 p' ~# B% X- r$ x( _, l
until <condition> loop
( e8 S8 K# F, r) { <statement sequence2>;. |: M, S, u3 p2 [& @0 T% A
end;
( J$ B5 ^4 y4 y (2) while <condition> loop6 v, q+ b/ a' X Z. ~% ]4 Y
<statement sequence1>;
6 G& j; D" ^* `& Z& U! k* F- @! z end;
x' D0 \1 G% j, n0 b+ L6 D! f (3) repeat $ c8 \8 [/ ^% v% k) F# j$ H
<statement sequence1>;% u7 f+ _. L2 T$ E8 b
until <condition>;
1 O, I4 B' f0 u/ Y& N (4) for <condition> to <condition> loop' c3 `/ x$ Z; I
<statement sequence1>;
- ]0 }5 ~. T! _% s) a$ u next;
, ]1 U, v& x1 C% ^3中断语句 R- J O; O% m7 F) Q+ Q
waituntil <condition> prio <integer expression>;# {) h6 B' x* t* Y$ a* ]2 m$ U
9 Q( h1 r: ^4 m
1 r+ m$ D+ m7 u) ]; j3 u) ^) C以上为常用的函数！ B0 @. e, ? E: F. G$ G
还有很多，如有需要我把资料发到你邮箱里
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