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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
* N4 h0 b0 D# P if <condition> then K7 N0 _8 r/ M% j# ~. q
<statement sequence1>;3 O1 o% C: {& ~2 X5 ~4 f* g
elseif <condition> then0 Q3 t$ v1 C O! Y* g/ m
<statement sequence2>;
! Q1 I9 K, Q; e6 w2 {. @ else / X9 G$ p* D, C4 ?
<statement sequence3>;) K. r/ ^& a- t6 v
end;: n: t7 y* _9 _% b* t4 p
如果分支比较多，用：
! ~9 N* _( P2 B% W5 x inspect <expression>
3 K0 Z6 Z! [, {& W; A# G; { when <constant_list> then
1 U+ Y8 z, U1 b3 ] <statement sequence1>;6 O4 N p& A/ N3 [( c! k& ~# n
when <constant_list> then: ~/ y* S# r/ S" P6 m
<statement sequence2>;
1 q w# {8 L! l$ C! s9 s: O4 w ...
. }7 ]6 h( {/ Y6 s0 x4 J else
. ~* ^9 Z3 Z. k" }8 ?8 w$ s8 u3 ~% c <statement sequence3>;
2 G. c9 }2 j2 H iend; i9 i* \3 ]1 \
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2循环语句
# E2 ~) T3 O2 O# V* H9 } (1) from <statement sequence1>
! V, {) [0 A: {$ o9 H) Y& W until <condition> loop* `7 H" `% H3 [9 x$ ^
<statement sequence2>;" o$ h7 B( `& @
end;
, l( D( A9 o+ l) m, Z3 C& @, Y (2) while <condition> loop( m* Q$ D5 |. Z
<statement sequence1>;6 Y Q# Q0 |3 S; P1 p
end;& \3 p7 U9 g; I6 n4 E
(3) repeat 1 U# j! t7 }6 x3 G4 Q
<statement sequence1>;. T- A0 [& h6 X
until <condition>;
- ^1 m6 T% {. U2 o( G8 u (4) for <condition> to <condition> loop
b, o' M" s v$ b0 [0 S <statement sequence1>;
1 |% d; w7 ~; | next;% p- ?$ Z' v+ |' N1 M
3中断语句
; j7 |3 v9 y S' G waituntil <condition> prio <integer expression>;5 n1 D% W% |; t, [
# `* h" g b3 W
5 e9 A; L! N3 \# S2 i5 v以上为常用的函数！
% p: q8 G' o6 F% s还有很多，如有需要我把资料发到你邮箱里 4 _$ I. e$ g5 W4 y4 g
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