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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
, P$ v: d8 P# u3 w @* H3 U5 e9 ^) S$ f0 s if <condition> then# K2 Y! Q8 `9 @$ g
<statement sequence1>;3 k. a4 ~: S# c) |
elseif <condition> then
. H% `: O0 U! v/ g' N3 l( T <statement sequence2>;. ~4 T* q \5 U+ H6 W1 E( \. p
else 1 C: L7 c* t" t2 y8 T$ y0 b
<statement sequence3>;
! P. D; x( v/ s# i5 M1 b end;
' U+ B2 A4 V/ N' u# F如果分支比较多，用：, a1 W! \. o0 n% h
inspect <expression>
& I$ [6 h$ C- w' w/ Z1 A7 I0 U: m+ P when <constant_list> then
( `% T d6 y' r' H( B( z$ T Q <statement sequence1>;
8 L2 D% w* B+ v0 k. v when <constant_list> then
* L" e3 |. G3 F7 V9 S$ I* m <statement sequence2>;+ k* f4 }0 Y# ~! H: z
...0 C3 d3 i, w/ x2 _" Z
else; F( {; s( ?% V9 V
<statement sequence3>;
) b+ }; x/ G- `2 {& Y9 M' X- xend;
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2循环语句
! m2 v; N. C5 d' c7 x (1) from <statement sequence1>
% C/ V- i+ F) J until <condition> loop5 J4 ~- I6 z$ N/ k1 p1 ?
<statement sequence2>;0 U1 i( P7 A4 Z! b
end;$ @# v5 r4 t# U4 E
(2) while <condition> loop2 u, X% z' ]; u. J" w7 O% k, _
<statement sequence1>;4 P0 k; g0 M. Q5 \
end;6 f$ U* q( R0 t4 j
(3) repeat 9 i$ D8 x6 ^+ d& N) X& Z
<statement sequence1>;
* E6 y$ w4 [ @3 u. n9 B0 S3 Y) T7 m until <condition>;8 o( K* w. V9 `! j& ?
(4) for <condition> to <condition> loop8 K; q' k( D# P8 h. p2 m
<statement sequence1>;
0 M3 S0 Y/ S: [) v: g next;/ n2 M6 m- c- U1 t
3中断语句1 h; k. `8 G% n, D& @
waituntil <condition> prio <integer expression>;
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* E, ]- R1 _1 ]- ~. R1 G1 U以上为常用的函数！
, I# ` ?' A5 M2 e5 w) s. ^7 N2 O ?还有很多，如有需要我把资料发到你邮箱里 6 U* e6 b) Q) v6 N, ~4 {# V$ h
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