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发表于 2012-11-13 08:48:12
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1判断语句
: {# b% e- D' y- A% b; t, e4 w1 v if <condition> then
9 ]2 c4 m# ]; t" z( G) ` <statement sequence1>;
& d4 l* b; B9 w' p8 n/ j6 ^ elseif <condition> then! U5 I. q% \# E, ~2 ~
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
H7 q% `8 S+ S& a$ i) ^7 e inspect <expression>* ]5 D3 M. F- k$ R4 N
when <constant_list> then
E5 m( @. p, L0 n. B# R4 G <statement sequence1>;
: g5 r8 X i+ }5 j1 u4 r when <constant_list> then( Y6 i0 d, J- J8 W% \
<statement sequence2>;
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else
! y4 i$ U& f/ w$ P <statement sequence3>;( S! Y: e/ R7 ]7 Y2 O! Z3 a
end;
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2循环语句 @3 Z1 k5 r% E" H" a: H
(1) from <statement sequence1>6 J6 C) p1 V; R* ?% h
until <condition> loop9 u2 ]- C! G, K. K
<statement sequence2>;
T( G. D0 ]0 f8 \ A4 d end;
: f; b- }, `+ w( ^- z1 E (2) while <condition> loop
+ I% a! e1 E* s! P$ g1 ^. X6 J/ Q <statement sequence1>;' q0 h1 g( U _; P
end;! n G$ b+ M- W- \
(3) repeat / z) m! ?% ~ j! @( U: ?% b! `
<statement sequence1>;% v! _2 ?9 K$ q2 z
until <condition>;
" Z7 ]% h9 B+ ~' B5 r8 T$ {0 G (4) for <condition> to <condition> loop. y$ }$ H$ U: O
<statement sequence1>;
+ e' d; I- r7 l: m+ z/ F1 Z% G1 f next; D* ~- s3 r D6 @) C u; L
3中断语句
: Y5 k' }0 A' u9 L waituntil <condition> prio <integer expression>;+ n: q: S# f$ k/ [) b
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以上为常用的函数！
9 Q, Z& y4 E/ D还有很多，如有需要我把资料发到你邮箱里 6 ?, O2 k$ Y9 R* H t& [
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