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发表于 2012-11-13 08:48:12
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1判断语句' O8 p4 b3 B5 F1 r' D6 |% o
if <condition> then
* ]7 _5 l+ Q# E/ u. o4 A <statement sequence1>;4 L0 }* S' U) q3 [! l% x# E
elseif <condition> then& W0 S9 A6 {; U, m
<statement sequence2>;
2 T) u: C1 Q4 T% k7 y, N' k' Z7 J else # I: W* q% j _8 Q7 y
<statement sequence3>;
3 C1 w: U9 F/ r! I& s+ `6 D end;
( w# u% G8 }( V如果分支比较多，用：( F6 t- J6 O8 }
inspect <expression>
" j' W% v) p* M1 ]( h when <constant_list> then! \8 u: V- X% d% W" U
<statement sequence1>;
* M" J1 U6 L9 R+ d) K+ f when <constant_list> then
7 M& Q2 P/ e: w9 Y* @ <statement sequence2>;
+ m6 k- ^: G9 m" J ...
" O F: j; Y( \5 x' F w2 q0 _ else
3 [* L5 \% ?8 B2 y4 T) R" p, N3 R( w <statement sequence3>;
: o5 ^: R5 h7 N- L+ |$ ?0 I, Nend;7 \7 P7 O9 |6 P/ U. d6 E/ o
7 ~1 i2 z) m' S; t2循环语句! d1 J! n! M. }, y) D: U6 L, S
(1) from <statement sequence1>
1 j7 G) W9 ~/ r until <condition> loop
& P- ~; `% k! [# Q: N) K; L3 l# @ <statement sequence2>;: ^& X3 ?! P& ]; V4 K
end;
; K2 x/ G- g' }7 f% F' ^ h F (2) while <condition> loop- k9 _$ k9 n* D5 o5 A
<statement sequence1>;1 X$ B; K# y, _
end;
+ M4 F7 n) [/ }" e' G9 z (3) repeat 7 H0 Y F8 U) ?
<statement sequence1>;
( `4 m9 v+ }0 L2 x6 `$ Z until <condition>;
! f9 n: b' |* R1 P" `! ] (4) for <condition> to <condition> loop' m3 f* _7 z# U2 t* b
<statement sequence1>; f/ k9 Z7 S) B' e
next;# E5 h; J$ t, `) a7 J, q
3中断语句
: [0 d( t1 Z+ _5 Q% C$ A v waituntil <condition> prio <integer expression>;
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H, o+ t! H9 f/ l' y0 r9 C
以上为常用的函数！
2 o8 K4 R6 h; D: p$ C8 T! ]还有很多，如有需要我把资料发到你邮箱里 3 @* y9 ~+ L6 Y! ~/ P
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