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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
0 s' ^4 n6 j6 V if <condition> then
( B, E, q0 D! J& ^ <statement sequence1>;1 C' S" R! x- C1 F! p! P
elseif <condition> then
1 k) ~& x! g8 G& _" p; I <statement sequence2>;# Q7 F+ X% {3 t) c' ~! e
else
: |: |# S) R8 L3 w4 Z. |# t <statement sequence3>;
( |6 o q* X* x, m end;; ~9 e8 G- z! j7 [. P w k9 X
如果分支比较多，用：" U, c2 N& [8 B' I# Z/ |& V$ l
inspect <expression> Q' ~9 D9 {) i' m+ C$ v
when <constant_list> then& x' y1 s0 X/ r9 C: T
<statement sequence1>;; @4 I7 @- {: {+ w" M
when <constant_list> then
1 _8 X' ^7 J) P5 Y <statement sequence2>;
7 H4 c( r0 t+ Q ...
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<statement sequence3>;6 t% M1 S% \3 k/ d8 o- a# B, \+ p/ j
end;
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2循环语句
. M( n" d( `; Z F3 `0 r (1) from <statement sequence1>+ e+ ?& ?" h, e( w3 d, }" Q1 K. }+ P
until <condition> loop; Z6 D# P# [2 E R' V6 {
<statement sequence2>;
0 B) |* T: s& j0 A end;
9 A2 h- `) |" f5 k$ [ (2) while <condition> loop
8 s! ~& c& N/ Q <statement sequence1>;
( }: L( W9 l( } S% [ end;! C: I: B( H9 _0 s; P: q
(3) repeat
- N* T. P2 K1 N$ z, o! e <statement sequence1>;
, \& H8 Z1 W8 V$ H! W. A; P until <condition>;
1 |$ t$ b* t( z! {/ F8 v3 ? (4) for <condition> to <condition> loop
$ R8 M# }# c- {4 Y! m. t <statement sequence1>;; F, {6 f3 D. X
next;
0 {) ]2 F: \4 b. X8 [6 W3中断语句
5 O0 A. ?1 ~6 i" T8 I( `4 L waituntil <condition> prio <integer expression>;6 q4 Z+ i& G2 O- `" l, _1 w
$ |1 A( G8 V# }% }0 L K+ C2 D9 E
以上为常用的函数！* X" D5 L; e- E# o# M
还有很多，如有需要我把资料发到你邮箱里
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