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发表于 2012-11-13 08:48:12
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1判断语句- f" M" A8 X) U5 M; H. i# A4 W/ `
if <condition> then' P$ |1 d5 u' W o( `
<statement sequence1>;
0 D; |5 b/ m, {5 i1 V0 {" n% b elseif <condition> then$ E! `* e n8 I1 M/ P
<statement sequence2>;
$ {) C$ y8 e+ e) k, Y# C, s else
- b0 u5 j3 N% g& }) Z* \ <statement sequence3>;
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如果分支比较多，用：
, ~3 g* F X3 ]; s& e' a- y' s+ x9 } inspect <expression>1 @( \0 n% f! |4 C
when <constant_list> then. U, }* o+ p! t9 F4 ^; o
<statement sequence1>;
0 [, l* n' w$ U$ k; Q4 Z% \& i) ` when <constant_list> then, J6 z4 [, Q% a( S% z" d$ L
<statement sequence2>;
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else
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end;
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) c% _* a8 P& J0 s. n2循环语句
! ^* U5 c& c+ i7 Y: @. @ E (1) from <statement sequence1>7 G9 n9 p8 r* h3 q
until <condition> loop
5 P! p& [+ E' o- A# n& s T <statement sequence2>;
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(2) while <condition> loop
9 [" K+ K& U5 n <statement sequence1>;# l8 t, Y$ N8 j1 d7 e3 F
end;
3 X( q X8 \6 G( G7 ` (3) repeat
" T* t# B0 g$ D <statement sequence1>;1 g, M4 z1 D, S4 ]( J% O+ R) X
until <condition>;$ X' L7 v& K7 M) X$ ~4 s1 g8 e& q
(4) for <condition> to <condition> loop
]. e$ E9 m# s8 g6 s$ n; J <statement sequence1>;. J$ ?, w8 C8 p2 h7 C* s2 V- r8 x' [
next;
3 o: m! L' C6 n9 B0 l. e& A. g5 C- Z3中断语句
; \' o( C5 I3 o f: @6 s waituntil <condition> prio <integer expression>;
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- i9 h* Q; {, R2 Z. ~以上为常用的函数！
- m; V0 `: a/ N" ] ^还有很多，如有需要我把资料发到你邮箱里
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