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发表于 2012-11-13 08:48:12
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1判断语句
0 A7 P3 I6 D5 F/ U/ X6 K' [ if <condition> then) j8 V' }# ~/ r ]8 n
<statement sequence1>;% M' V( N3 O6 n" }5 Q V
elseif <condition> then
0 G4 b( ^# O* ], r <statement sequence2>;
7 Z7 X, i5 j o2 m4 }' |6 n- ~, B else # N0 A% a7 R5 Q
<statement sequence3>;
! b& q8 V5 X6 a" J5 E end;
' `* [* W/ B$ k8 W6 D如果分支比较多，用：
8 K8 h2 i4 ?4 F( i* L- O+ m g$ J inspect <expression>
: _& x7 `& H! c+ E0 ~) Q6 \ when <constant_list> then6 s6 K7 {* X% c" O7 ^
<statement sequence1>;; x6 n! b" x4 b
when <constant_list> then* T, [, q+ [5 K* w4 r4 P
<statement sequence2>;8 D+ Z- @0 K/ k9 D! Q$ \8 ]
...- ~8 W) I2 t! Y6 Y F' C
else% b) l7 ?/ F4 _. _, U7 q) `1 C
<statement sequence3>;
& @' F: A" w( |' Q& g2 iend;
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2循环语句
! ]. k U# K8 k (1) from <statement sequence1>
" d0 |4 f0 n. `* _ v until <condition> loop
) P: l; {+ W$ B0 T' u" v <statement sequence2>;: l+ S( Z# c0 n5 E C
end;9 l5 m$ L1 [$ W% N: k/ ^2 y
(2) while <condition> loop+ ]. n) [: L$ |1 l
<statement sequence1>;
( J+ e. V1 s1 a& o' Z# o( }, t end;
5 U4 n0 f! U; f6 R (3) repeat $ O6 Q7 N- M+ ?/ J4 p: N* y
<statement sequence1>;
; m5 k6 h: ?* K5 D0 v until <condition>;, D, w5 b- z; { ]+ F
(4) for <condition> to <condition> loop& o3 k h$ l6 z0 V
<statement sequence1>;
( H# M Q( j' X+ T2 G6 s# g next;& T& v# i& o! E
3中断语句
- ~# o, f/ G: h0 w9 U' B# R waituntil <condition> prio <integer expression>;' N) Z( b& T2 ~! U1 V1 i9 j4 Z
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以上为常用的函数！
5 \; o5 I5 u% d% w还有很多，如有需要我把资料发到你邮箱里 3 y, b0 {( t* H7 M4 Z+ p& {( H7 l) y
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