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发表于 2012-11-13 08:48:12
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1判断语句
; A# H) R; q6 K _, ~ if <condition> then
2 E9 N( [2 U' I <statement sequence1>;6 g. S% }0 A% X M
elseif <condition> then
. q' t& c9 i9 A <statement sequence2>;' E, A9 j" k; h/ v! H# C
else 3 w. {4 x# w2 I& V* S, p0 B
<statement sequence3>;4 A/ y: \4 d" v1 p: N8 H' ~. m8 O
end;
0 z3 Y& ~, W7 R2 |如果分支比较多，用：
7 }' G& |8 A5 @; H. v9 ` inspect <expression>
- V [6 A& H' g0 Z. l- o when <constant_list> then
) U0 L- W9 i; L- K <statement sequence1>;3 I: h9 y, l. _+ E9 j P
when <constant_list> then: w( v. V0 c' O' F( I# ^0 ?! t- I- }
<statement sequence2>;) w- w# d; B8 y# a
...0 X: x C0 b) w1 {9 ~( Q) V
else
9 F6 _: D- X* K- [5 w, ~) O7 | <statement sequence3>;9 ~+ q( W, k0 ~% n
end;: H1 Z8 X- F/ X* }7 v8 C
/ M: x% x7 \6 r2循环语句
7 c0 S2 n5 K7 k q, R+ Y (1) from <statement sequence1>
) ^/ u1 J- z. x& J$ v# F until <condition> loop+ F/ F1 N9 i0 Q" w( v5 j/ C3 I
<statement sequence2>;" X3 b: q* K3 b* h/ ^$ {
end;
& ^# ]. G. a( Y5 V( G! K1 N1 t# K. Q (2) while <condition> loop5 N; R. @4 x0 s9 f
<statement sequence1>;
' ]/ z* I9 J, n! a$ z- X end;+ W$ ~) g- i. k" \( j
(3) repeat
$ w$ p; h: ^9 s4 X y- J5 f4 Z: x <statement sequence1>;
r& R' \1 n, h: m- i6 p until <condition>;
1 i0 b, C9 n5 p9 d$ ^) r (4) for <condition> to <condition> loop
( b: ^' c7 Y. P3 A1 ] <statement sequence1>;
G1 l7 R+ v/ v: N) ? next;
' W% t: V/ b5 J3中断语句' n$ C Q% Y: m* I# |
waituntil <condition> prio <integer expression>;* @# v9 B4 v: w6 ~
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以上为常用的函数！4 [( ~" w% S2 K4 z3 L% `8 D/ m* v* K
还有很多，如有需要我把资料发到你邮箱里
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