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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
- t- k2 W0 R+ u& S0 f) p if <condition> then- [* b9 o" N7 I3 i
<statement sequence1>;$ s. l; K' i7 \( @( b, _, T
elseif <condition> then; N. I5 U, D7 `8 |! F( X% ?; S) ]
<statement sequence2>;
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<statement sequence3>;
! E2 D9 r' @7 W8 [& ?0 M8 R0 o end;& A. O& P+ R3 d$ h$ Z
如果分支比较多，用：2 i5 W; a, m+ m# K6 E
inspect <expression>
2 u5 j# Q$ K- n" E7 ` when <constant_list> then& l# W$ W3 _& J, U/ u
<statement sequence1>;0 `) P+ ]! z6 F' N y' G' `
when <constant_list> then: S4 C* Z) C3 o- E2 u' q" z( I/ g
<statement sequence2>;$ f1 {9 E# y, G- E) c
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else
: \% I# r% [) D+ D' H& a* C+ h }9 ^: E <statement sequence3>;
7 M9 |6 k1 x8 e; e- L2 wend;
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2循环语句# o& w3 } \/ m' l9 v% G9 m/ }/ Y
(1) from <statement sequence1>
, \4 _8 p' q8 x, U6 ] until <condition> loop1 g4 C3 P# }3 x4 ^$ z; a9 e
<statement sequence2>;0 m, t* @4 E. Z
end;
' [: Z+ k$ \# A (2) while <condition> loop! t- U0 i2 S+ U) ] b3 `
<statement sequence1>;
9 i9 b% a5 Q% I) t8 O9 W end;
8 c! Y2 m" D$ C( O2 w$ u (3) repeat
3 L; H! x8 v0 C) b$ r <statement sequence1>;
# I: ^) X2 q/ w' C until <condition>;
1 r- |# x0 z H* D! m" X (4) for <condition> to <condition> loop
( P( @" l! o- w' A: B; Z9 |. g6 x <statement sequence1>;
6 K! ~8 g! N& c7 o* \! f9 b next;7 ?6 {3 m8 z3 N2 p Q: Q2 Q
3中断语句
% a2 G# h" u; k/ F3 ^; w waituntil <condition> prio <integer expression>;9 m% J: l$ u4 f* h: V+ |2 K# T& h+ X
) ?3 U6 {- X1 P. d- M! {& W; g. f4 g3 g+ `- Y- o( ?1 G
以上为常用的函数！
5 {- H5 I: n* h" `8 E9 p2 S I还有很多，如有需要我把资料发到你邮箱里
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