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发表于 2012-11-13 08:48:12
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1判断语句3 @& B- u5 f/ ]# q0 I$ {2 l* v
if <condition> then
$ @* M4 }+ V' k' x% Z( f <statement sequence1>; U/ K) W0 F" a: Y q; i. J
elseif <condition> then
: g' ?3 ?# s$ n" \+ v3 k <statement sequence2>;
h' }& h8 }. B3 e else
9 n D7 r" j- t' Y+ l/ ] <statement sequence3>;
0 u9 |2 W7 E2 c8 W end;
9 M* C% W; F) |2 N3 M如果分支比较多，用：
; }( W) e( q! D0 ^( f inspect <expression>
! Q$ |# N) H& B4 c2 ^ when <constant_list> then
5 Q! g- n4 m! E! Q& p* U; t <statement sequence1>;
& g& u: r2 s/ m, o$ Z+ {- i when <constant_list> then
1 N1 L1 T' v& o, O' B% |1 t5 A& v! Z <statement sequence2>;
8 G' |1 e5 B5 l$ Z F6 { ...
a/ o* o" A2 a8 m8 N else6 n, @; R% S7 `+ k6 G. ]
<statement sequence3>;
: x" n7 b& P/ o5 L- w0 J+ F! Oend;. }; L5 D( N* P7 O9 b
* D- a' Q, c) S; P0 z* `2循环语句# I; n5 O) X' v* ]
(1) from <statement sequence1>
0 L+ R; z6 A1 Q/ s+ w until <condition> loop8 y1 D- n! l, [
<statement sequence2>;& ^! E8 O/ L4 }3 \! `
end;
1 J N5 N! \3 t" f; T ^ (2) while <condition> loop
6 d8 [* `: R* b+ ~ O, K, E <statement sequence1>;
2 ~" r5 S5 E8 U; u4 N5 i# } end;
8 M( o v& c* E) i& D: D (3) repeat
3 D+ X( Y/ Q* T" f <statement sequence1>;, k# h( y% I5 O o9 |* {& w) x
until <condition>;* ~% x; B9 R2 }/ K" p
(4) for <condition> to <condition> loop+ j( r; p8 A& n
<statement sequence1>;, G1 p- V) {% U, l+ h$ b& \
next;
1 d( ?. E) X4 H" h3中断语句+ f% I/ K/ q7 p, t U7 l& @% Y
waituntil <condition> prio <integer expression>;. ~: y a' S. o$ B+ ^' h
, ^2 }' J1 q0 x2 T) i% Y2 F
+ ?' X$ f: t7 A9 g" d: r
以上为常用的函数！
0 `* s. X' ]" T5 Q2 m6 P, u还有很多，如有需要我把资料发到你邮箱里
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