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发表于 2012-11-13 08:48:12
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1判断语句
1 ~0 S( K% S( n- v& F7 e if <condition> then& U0 _; t' y; R8 W& @$ ~# E
<statement sequence1>;
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<statement sequence2>;
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<statement sequence3>;, W2 @, O& K, K0 R5 F; _/ [; b$ k/ G
end;
8 ]* c: Y9 X: F, L1 D, P: f9 T( g如果分支比较多，用：) E& t: G4 P8 B8 m1 D& `
inspect <expression>7 u! Y s: u3 r) E* O
when <constant_list> then
& g5 L& l5 R& `) b <statement sequence1>;' q- B8 T, y t- J9 X
when <constant_list> then7 f1 W8 ?- F3 ?- }6 @
<statement sequence2>;$ |( N6 @8 }8 Y2 ?: R
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else5 e2 ]# l X' |6 K" y; C V$ [
<statement sequence3>;
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! L4 j) w" E6 }" @, k6 f2循环语句
4 x4 l3 J* o' W1 Y8 E* W/ R (1) from <statement sequence1>! J! h% B2 j1 w& f6 i6 p# r
until <condition> loop
: w2 n$ ?+ |" @1 Y0 K; _: Z! @ <statement sequence2>;) ]+ C/ j# A; i" ^" t0 ]+ X
end;5 q e& M4 D' h1 t e, N# }8 j
(2) while <condition> loop) M: _8 ^; s; q# n
<statement sequence1>;
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(3) repeat
% }# u: A1 q! P( [ <statement sequence1>;
/ }. ^( ]) z; D6 z6 h1 ^0 n until <condition>;
2 K/ a6 `7 W5 d6 O (4) for <condition> to <condition> loop
$ G Z! o$ N0 F" n8 m <statement sequence1>;" H# d# ~$ R' m* ?
next;
% l- Q1 R* y& g8 G) _' z: Z6 q3中断语句
! r U/ F( U& n# @# E& M+ N waituntil <condition> prio <integer expression>;( B' a+ v2 j* }
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4 r" k2 g+ \. r+ j: {以上为常用的函数！/ _- M/ X0 v. V8 K
还有很多，如有需要我把资料发到你邮箱里 $ G# D; f! |! _( ^- c/ X
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