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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
; u- }( ?5 Z7 ]; r' v* P# Y! ~ if <condition> then
; p% [3 u- D+ W' o2 M% s' _ <statement sequence1>;
2 H% g) u, i: H elseif <condition> then+ Q! u; }# i) _) N) I) i
<statement sequence2>;
+ H; W2 ~7 f, t/ d. y! V else
( A3 u! C8 h# @" H <statement sequence3>;8 F& P+ C8 o v
end;, G2 I9 z1 l5 `
如果分支比较多，用：
8 N2 [( r$ Q. c, k {4 E inspect <expression>5 T) n9 h3 p+ c
when <constant_list> then
' t. ~7 e8 b2 v) \, F+ O/ o <statement sequence1>;2 Y2 E( M# b% Z
when <constant_list> then
) q& v' g8 |1 h( u( _ <statement sequence2>;. O2 u8 V- v3 v$ e
...
# o! C1 d4 y% h7 r5 t else
5 M; |0 P5 `8 F: r6 Z [ <statement sequence3>;
" N4 O& T& B9 R$ Z( S. l+ gend;: ?5 u1 p; r4 B$ P( C! d, x5 X, W# F
% m( ?. c+ }, U2循环语句
* [( |$ b$ I# \* y/ u: ]# t (1) from <statement sequence1># K% \, | w, s
until <condition> loop1 r& c8 a1 `4 J6 a) E) @5 k
<statement sequence2>;
8 A) m# N. {4 m3 d- f9 n end;
* B: {4 n+ b n9 r$ G, c (2) while <condition> loop, H- X% r r& G, d& q& W( y$ {
<statement sequence1>;
% z, l0 k4 ?- l: T+ s& q3 _; ?" v end;- d: g3 [/ u; D0 N5 x5 A9 L
(3) repeat
' A: L5 W3 v: q <statement sequence1>;
( G' C. q; E& G% m until <condition>;
3 r' x" R5 j _ ~8 A7 U (4) for <condition> to <condition> loop, G6 l5 b1 F5 |$ Z
<statement sequence1>;
# E9 [7 V7 \: [. O) B next;( y" t8 u$ c/ a' ?% J
3中断语句
- G0 J, ~8 [# @/ v waituntil <condition> prio <integer expression>;
$ m. U( g/ V9 f
+ U3 A0 Q1 m+ F/ ?: a, l/ `# g0 N( x
' N, J& ]4 N( i; u0 v0 r1 ?7 E( m以上为常用的函数！
6 y8 I4 a0 V2 k9 [: H还有很多，如有需要我把资料发到你邮箱里 # x" O' G' ~' I% \
. z0 h) D6 N5 f2 H# n; z
3 F! q" y$ t; e4 u" m
+ e! u; G" v$ p- V# q
|9 r1 m5 I1 @! Z, g: X) F* C9 T- D! g' _' a
- o' `& E: J- d' V9 J) K
3 g, E7 g3 Y$ Z: ~( t
! X/ V- W1 _+ O
5 t, H" g7 T H+ t
. r9 V: u$ A3 L' }
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