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发表于 2012-11-13 08:48:12
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1判断语句) A+ o5 s, p$ d+ T- y/ k
if <condition> then) U0 a# U: S1 d j
<statement sequence1>;4 _- l( g# \( N( {4 ^) I8 ]; p' |
elseif <condition> then" f6 S% O, v- L9 S" ^
<statement sequence2>;7 s* o) |$ f# S1 ~$ I2 ]. n
else
0 k* P* J* F) W. V/ B6 u, t' \ <statement sequence3>;
8 t( H+ m5 w- [# H: v0 C1 o! N end;
& j2 Y" U! \; [. y& E) o如果分支比较多，用：
& V9 `& H8 {0 V- O. M* F( D; \ inspect <expression>1 [! i, ~ ~2 @! R9 t8 I7 n
when <constant_list> then
! f- |2 w3 G6 u% O8 T! d$ h <statement sequence1>;$ a! T/ V; b) h t x4 {( ^- ?
when <constant_list> then
- d5 e/ E( w& R5 N/ }5 W <statement sequence2>;5 e; [/ a" \: \$ ]' r' f* [
...4 o2 m; h3 T2 ~2 H/ _/ C
else; b7 a4 K3 g& k- o) L
<statement sequence3>;( @3 u8 ]. f' E1 S# t
end;
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2循环语句
7 ~) ~7 v' V- M' z. Q: F& j (1) from <statement sequence1>
+ {" U$ B9 `* H+ l; _( G until <condition> loop0 P- S" D! r2 g/ Z+ M
<statement sequence2>;- ~1 e# [$ P- a: A3 q q
end;$ {3 t2 b1 P9 {6 Z
(2) while <condition> loop; B2 H$ H- L0 z' z" N; e5 k
<statement sequence1>;" Q( I( }1 h$ P+ a
end;: j% G/ X; u+ G( n8 ^* m A" r
(3) repeat
6 j( v+ N$ E' Q& L <statement sequence1>;
% W( b: R3 I+ B until <condition>;3 Q& r" V& y! Q) w
(4) for <condition> to <condition> loop1 t: [+ n) D6 A% C' `" M8 j# x
<statement sequence1>;5 ]2 V6 X' S! d+ n" k6 P
next;2 k2 M" W+ f8 T) t1 N0 z/ z& w
3中断语句, N1 d. _* A( c4 `1 u' B( ?8 V
waituntil <condition> prio <integer expression>;% \) n: r$ W. H7 g2 _# v& `% h/ m
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以上为常用的函数！/ s; g' r/ O% u1 e
还有很多，如有需要我把资料发到你邮箱里 0 | `+ a0 d( b$ o! }8 \# G
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