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发表于 2012-11-13 08:48:12
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1判断语句
# i+ m! }3 G' F5 a' ~ if <condition> then
' T# j9 I6 G2 o <statement sequence1>;: }* ?7 ^; a; o o- R# R" s
elseif <condition> then
2 A0 E# J* T7 i2 G: C <statement sequence2>;1 M! r' L4 R+ \- B5 V6 J0 f
else # V3 ]% K2 z! p1 [, o
<statement sequence3>;) B. t9 {/ }/ C; f$ r
end;& F2 G3 V6 ~" `/ ?: X
如果分支比较多，用：: F7 d* D, V! ~( G m
inspect <expression>
! t6 R" f$ b2 K) C- S when <constant_list> then
* z' P V" }* H7 T <statement sequence1>;, h/ f L* j; c& m3 c
when <constant_list> then
- M# Z7 A/ O! u: J/ u <statement sequence2>;
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else5 b( P- ^% d) U; m- d( K. l
<statement sequence3>;
# W. Y& F( T4 q7 Rend;
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/ c0 y5 v% Q/ J: e% V2循环语句
2 y) `8 L2 @ {& O) F! ]! R$ c (1) from <statement sequence1>/ T8 D0 }' {: p8 @2 n* r1 k
until <condition> loop
" j: ]- S3 V, H! X% \ <statement sequence2>;, ~0 X* Y1 _# J" X
end;
$ j6 K1 O% S# U: }* t( h9 v! U (2) while <condition> loop2 Z* O- h; f6 V- N$ x
<statement sequence1>;0 [. H/ E8 R& `) H% X: p
end;5 R- w) i! D6 n0 z2 ^) `8 }& f p" Q
(3) repeat
6 n6 c( N2 P; U/ ]* E, m <statement sequence1>;
- P& u9 } o2 P until <condition>;7 y) x2 B& R$ r3 K2 t
(4) for <condition> to <condition> loop
! L6 v& X, ~) H <statement sequence1>;9 w4 M+ S# n+ t* L3 J! n" L) s
next;
7 z8 c( M# s7 F3中断语句
0 W" b3 `9 i& a3 y waituntil <condition> prio <integer expression>;1 V# j | ~5 ^ h( T3 U
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B% C' U( |. |% }1 Z
以上为常用的函数！# R; P/ b# d# M2 {: C0 u( s' u
还有很多，如有需要我把资料发到你邮箱里 7 ^2 i* ]) w( L$ f4 z' ^2 J
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