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发表于 2012-11-13 08:48:12
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1判断语句0 a5 E! `" L/ P" p _& T! Y9 O
if <condition> then Z7 M8 B1 J! n A3 R0 X9 y
<statement sequence1>; M& L# _4 ^8 P
elseif <condition> then+ i* J& l& w8 v
<statement sequence2>;
( a& o* P; w& Q- t8 E else ! K. q! v4 h+ i5 g' A# ]# O
<statement sequence3>;
, M2 j& Z6 i: M& D7 s# Q, ^& F6 V end;
. F' t% `0 ]9 U G7 X% [1 {如果分支比较多，用：
0 ^4 {2 J6 e0 q% j inspect <expression>; t5 @+ s4 U& l9 Z9 X7 `6 @
when <constant_list> then* m) R1 A1 L* W2 A& m- l+ r
<statement sequence1>;
9 G( C2 s2 e- J4 ` Y( S when <constant_list> then: I* b# @' @1 E6 y+ K* V4 X/ C
<statement sequence2>;7 L$ B9 m' T% _8 l
...
- O0 O- o3 X* L+ f1 W7 n/ t else
" _/ \4 T9 R! N& ] <statement sequence3>;' H$ ^+ x+ v6 B! E0 f
end;3 G: _+ I |. C, O( Q8 ]
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2循环语句
5 m/ q: X% c' k3 G, g (1) from <statement sequence1>
& T7 Y- X. h) h" W+ j) D( Z3 W until <condition> loop
5 {' y% E- {" B8 H" Z6 d4 k+ g <statement sequence2>;3 q- o [6 q1 Y6 D
end;0 G3 }% c- x8 G& ~, E) I w% ~
(2) while <condition> loop" I+ M! I. P9 l2 q$ \0 G
<statement sequence1>;
/ s- C; Z) c" F+ @2 r end;" A$ `- N% O" t5 i* ?+ E
(3) repeat
. }0 m6 |3 @6 v7 A6 j7 S <statement sequence1>;
/ l$ a9 w7 Y# [5 ?; `) {0 t until <condition>;
2 Q1 U I* O }* I4 @' l# ~$ r (4) for <condition> to <condition> loop
t0 A1 S* t9 M <statement sequence1>;: R- J4 l, y& p$ X- P o$ ]: n
next;
, C% V) y$ B( k7 S5 R3中断语句
# D( y" g/ Z5 J$ i waituntil <condition> prio <integer expression>;3 O: m! p$ z' s7 V6 B! n# _
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8 @" ?3 n( {- {% `! U0 P! O以上为常用的函数！
4 U5 R/ ?7 z: l, p( w还有很多，如有需要我把资料发到你邮箱里 6 E* g. s' ^; B0 J8 Q t
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