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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
. Z% Q' j# G' S8 `, Q9 Z if <condition> then
2 f, j" W& w. s3 K9 }& u <statement sequence1>;$ N [5 v+ Q0 N
elseif <condition> then
: I% l2 Z% `- l' Y. o <statement sequence2>;: F1 O/ v0 Z- ]+ T: Q2 k
else 0 O; }. Z! v0 k6 [ h; O5 ]
<statement sequence3>;
1 s# L& G- W! ]! i$ g; h end;
/ t* {! E8 y% V4 c0 C' z如果分支比较多，用：! X7 q+ E: M6 j
inspect <expression>
( {- ?. a9 X4 t* }+ k when <constant_list> then
2 j& Q+ P, w; v! H$ W, v- D <statement sequence1>;" r( _' T- u! l* ]8 r
when <constant_list> then
' t x4 ?9 u K* X2 Q <statement sequence2>;5 ~9 t5 C( {8 U3 |
...7 y5 W2 k8 _3 h8 |
else/ @! ]$ v" P" W8 T& g$ g; ^0 K( I- d: v
<statement sequence3>;
: H/ g( V" m- y! D# Dend;
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) {5 A; x+ g7 x1 }2循环语句) J& g7 j: [' U' k1 V
(1) from <statement sequence1>
2 r& j9 S6 v. [+ a: n until <condition> loop
, O& i' [$ p4 f7 Q# H3 U. g4 l Y <statement sequence2>;! I+ v5 x i+ i) X8 _4 A
end;
6 U, v y! Z% ` U5 J( Q (2) while <condition> loop
, t) p5 f7 a& U <statement sequence1>;! \; |7 m! D% u6 t5 [5 g( @
end;3 ^/ ?/ i1 P' \0 M$ T* z
(3) repeat
! q _! t! ]- y2 K T; s <statement sequence1>;+ y& t$ \+ e& m$ ]
until <condition>;0 l! q) z. U6 D* E$ X
(4) for <condition> to <condition> loop' u8 t3 [2 A# E( L: z( N
<statement sequence1>;3 I, i' Z8 E. r/ Z$ a2 ?$ R
next;. ~ S9 o9 P; h/ \, @
3中断语句
! y* f0 v! G8 Q0 \ waituntil <condition> prio <integer expression>;7 g, W% @$ U! b9 \1 `& R9 i3 y" V( a
) G0 I. F+ U/ @$ D0 b M" U1 l: N0 a5 G/ l
以上为常用的函数！
4 l7 V4 V( |" _/ m还有很多，如有需要我把资料发到你邮箱里 9 e9 _; v# x/ g N
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