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发表于 2012-11-13 08:48:12
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1判断语句 V( w! u: y$ N5 K+ q; R
if <condition> then' r0 |4 \$ R% p0 i( k
<statement sequence1>;
1 Q5 \" Y0 T' |0 f: R elseif <condition> then. `0 P/ [3 {2 O
<statement sequence2>;
+ C1 I/ c+ w+ P else
) B5 r5 K1 c! H <statement sequence3>;7 F; N7 @, J$ `" f. G
end;* H7 D' _8 u! m4 n+ u
如果分支比较多，用：- X4 R. @% K9 C. D, c6 D3 t0 ]
inspect <expression>* {" v4 R4 W6 X1 B4 k
when <constant_list> then
6 Z6 P# {- ^3 d% j- S <statement sequence1>;
$ Z W* C% i E% m when <constant_list> then3 l* U! A. k) l
<statement sequence2>;
5 V2 ]: }) F8 r" h ...
. c. H; T( T& p R; V( N: c1 M- N0 p else
5 u$ r6 C# v& ~" ~7 _7 D9 n <statement sequence3>;
( E4 V$ m3 E0 yend;- z5 b8 ?4 V" a$ s0 t
) h) u0 v0 q* X( O% V# n' J+ }2循环语句* c9 T* i" f5 h7 Q8 R& f. n
(1) from <statement sequence1>8 t$ w; r3 `5 p# s w* o* B4 j
until <condition> loop: s. l o( k# c! l% \
<statement sequence2>;! O# ^, O7 _- {. h
end;
! [- g6 A3 o# n$ g" S% m$ ^7 j (2) while <condition> loop. f* ^8 v, Y$ }9 E: [+ N, b
<statement sequence1>;* |. P: d+ Y$ \: a
end;
2 b# t0 W) Y) t$ t+ U3 {, _ (3) repeat
$ g3 _1 D: P. f" a0 n <statement sequence1>;
2 _/ h0 d! Q6 N; Z# d8 T$ V/ h until <condition>;
6 T( Z& g' C9 j/ Y (4) for <condition> to <condition> loop8 v$ H3 G: [" l" M
<statement sequence1>;9 n( l; P, \8 g" f$ }3 f
next;
- m0 Q Q" ]5 Y. D# z' t- r1 l3中断语句2 Z3 \4 N' M7 Z6 b& `) A
waituntil <condition> prio <integer expression>;
& P4 |( O( w' q1 O
& b" S; F2 i' l. \. H0 s- ~) h \2 \& L, q
以上为常用的函数！
1 q E( c) |+ N+ s还有很多，如有需要我把资料发到你邮箱里
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