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发表于 2012-11-13 08:48:12
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1判断语句" R4 R# S; k1 k0 h! }- J
if <condition> then) ] S" s/ f' g$ m; G2 E8 n
<statement sequence1>;
& `( @* j y0 @* \: ^+ |, i. S elseif <condition> then; S, \# P) M; q! j
<statement sequence2>;' ^0 w, t7 F2 b. X: Y: T/ E
else + w# {8 Y" l0 W7 k( g6 L- {# V# D
<statement sequence3>;' k. u; l d& `5 l6 t% h3 t J* p
end;
2 E; O( v" {) l5 v2 \4 u( N如果分支比较多，用：- F$ o2 m: G" `5 S! I
inspect <expression>, Q3 v! _8 M: [
when <constant_list> then
/ w% m& q3 c$ Q1 F <statement sequence1>;
) }' M4 Q2 q( ?1 `7 s% F2 \# v when <constant_list> then
# j- l- ~- `2 I# g+ O z* W <statement sequence2>;( N# g# {/ L6 v& K, V8 p6 G
...
0 T, d1 a" @( p8 ~0 m5 }# x else! K9 _. ^) A" `, r, X
<statement sequence3>;
) t* k% A" @. R: xend;9 V: C$ [% v m
4 V+ E$ h( e7 y) R2 M9 t7 {" P2循环语句$ O3 j1 g; } \9 t1 i3 Y+ K( T
(1) from <statement sequence1>! V7 |! _! s x% P% h8 T- M
until <condition> loop& }. ~- [6 P% l' L' ^
<statement sequence2>;! q$ Y% ]) L, |* B' k
end;
$ c+ D3 N: ~( U1 }9 Q) [% W (2) while <condition> loop
( X- A1 w8 _1 h, B <statement sequence1>;
- h8 F; P) P) A7 l N* T9 Q end;0 n- Y. C1 _' w8 z# j9 Z2 ^, Z: B
(3) repeat 2 U4 v$ W, c: I- `$ i
<statement sequence1>;
! [$ W! }0 C, }0 Y( F until <condition>;6 b$ u; J+ ]6 D, T* \
(4) for <condition> to <condition> loop, ~' I8 D8 M* _
<statement sequence1>;
6 u$ w$ P3 R# B6 _/ S, e: d% W next;
& |/ b$ Y' a& b1 l6 k/ ?3中断语句
+ k# a ?- _. ?1 J/ A waituntil <condition> prio <integer expression>;# r$ O0 K: u8 v& q9 K% H. a
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以上为常用的函数！- R% z% _2 I. _* Z; s
还有很多，如有需要我把资料发到你邮箱里 & X7 T7 q, s* g" l" I& _
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