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发表于 2012-11-13 08:48:12
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1判断语句3 q. ?' q5 j2 f1 ^/ c" t
if <condition> then
& _& B; w/ H$ |- p <statement sequence1>;
! x- p) h( ]* t- H! Z" X4 v. Y elseif <condition> then
5 L! Q6 A$ I, }# `; P2 c <statement sequence2>;
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<statement sequence3>;6 f+ P. F' I4 r0 Q' @" [5 o; W
end;
7 Z( |& n" ?% |2 K如果分支比较多，用：
7 V: V" E+ K5 U1 T. F# o, \ inspect <expression>, H( }9 }* C2 C) ?- h% n1 [# X
when <constant_list> then
3 ~" S. M+ h2 \0 f1 R0 {1 N <statement sequence1>;8 E5 T1 M1 A- z% L1 }! r1 E
when <constant_list> then# h% a8 @4 i7 ~ r# l" w
<statement sequence2>;
- o y, O- @' s# J. l! Q7 a ...
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<statement sequence3>;/ g/ l( h( {) F1 k: d% G3 o
end;) u0 w5 ^4 u% \! t* E+ ~+ \# P
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2循环语句
& x- ?" ^! {0 r) t3 P (1) from <statement sequence1>6 X, s* [ M% m2 Q4 ?+ g5 J x
until <condition> loop( [4 l9 ~7 ?7 F' K6 q% f
<statement sequence2>;0 O: D9 I! `4 ?
end;4 o& ?' K5 T+ V1 q$ ~1 X3 w
(2) while <condition> loop+ t& r6 @3 U ~' c$ Z- a
<statement sequence1>;
' j+ p* m, ~( M" W+ v" \7 R! \ end;4 r3 u5 D. P6 Y
(3) repeat # z4 L8 s, f' P# A/ K
<statement sequence1>;! G9 I1 Q' j2 c8 e* h# r, n
until <condition>;0 q" ?) S" w8 Q( n
(4) for <condition> to <condition> loop
, Z" ?- b. A! k& U: ~ p0 q <statement sequence1>;$ W# Z9 i9 \5 E1 h. q- E; B
next;
: A x9 @: T4 x6 [) }3中断语句
! @; }' j+ v9 K y& V- v; A8 s waituntil <condition> prio <integer expression>;
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5 s2 `- ]/ X1 d$ Y' [0 i以上为常用的函数！
0 H5 _" D3 d4 P8 J还有很多，如有需要我把资料发到你邮箱里 ' j! @9 u) a2 z1 I
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