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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$ ~! }0 T6 O* m- Y& @2 R
if <condition> then, n+ D- N# j: ^, w1 i, z7 \
<statement sequence1>;
! J# u. u% S( x' p elseif <condition> then
3 k, E% n, z2 b* d <statement sequence2>;6 }/ y [) g& L: `" e7 u+ w
else 2 q. m# O# B! M3 ]4 B
<statement sequence3>; d/ Q+ B; R g. M% P+ Y
end;0 l8 ^ e4 X- p2 @' u3 Z& r
如果分支比较多，用：$ }; l3 \2 i8 d( }" A
inspect <expression>
, K/ \9 b0 g- }2 |- o$ c& x* [ when <constant_list> then
$ @2 h4 ?, J! `9 c <statement sequence1>;
# ~/ v2 J; A E# r, v: ~- s0 d when <constant_list> then# i% w) Y# E$ x3 Q
<statement sequence2>;
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else
+ M9 x6 t; j4 S, z( c" s7 h2 B <statement sequence3>;
* o3 R5 V8 f: ?: i9 ]4 w G. eend;
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2循环语句' f8 C2 w9 z8 i1 l6 E! h/ [$ J
(1) from <statement sequence1>1 I2 E" w- e) X4 ?+ ~
until <condition> loop
# h- } V5 A( V5 K9 t+ C6 \$ v <statement sequence2>;! b! A) p; `8 t. g2 V* d( Y; V
end;0 d) O7 T8 Q3 q, [9 A
(2) while <condition> loop
* x# {( b7 H l _* N4 ?( A: O! F! F <statement sequence1>;
' @: g4 a, d& E3 a' _ end;
0 W0 @- P) {' P2 r9 V (3) repeat
6 C; i7 J' K5 z <statement sequence1>;; D% a0 K7 d$ J0 j8 ]& w
until <condition>;& f- P9 G1 I) z9 ?* F6 a
(4) for <condition> to <condition> loop
2 v: `* `. @3 C <statement sequence1>;
: U8 `; c; S0 F, Q$ Q next;
, d8 R7 c% h! P: o# v# ^3中断语句
) S" C5 z+ h* t! a3 f) J waituntil <condition> prio <integer expression>;3 s; h% L1 M9 m& ?* H2 S
( q6 v! A* ?# q$ s8 f* l" S! A& s6 b- w0 E+ C9 ]
以上为常用的函数！& ?( A) V, l' [1 Z _* V
还有很多，如有需要我把资料发到你邮箱里
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