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发表于 2012-11-13 08:48:12
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1判断语句
& M7 N" d8 `# E' R% B if <condition> then" j. k0 n5 h5 W( ^. G4 Y
<statement sequence1>;
' e* ]" H2 d$ r7 E% A7 H# n, g# N* f elseif <condition> then
1 e) ]; B; }+ m+ C u <statement sequence2>;7 ~5 s2 |& q$ ]+ }9 W( X3 \
else . X0 [/ N$ I( S( o7 R- m: B+ h
<statement sequence3>;! f1 F1 F- C6 L" I# K6 j
end;
( b9 H1 E# r$ s如果分支比较多，用：
" A9 ? q: `/ U2 X( v W! b% ~( t inspect <expression>
' F* p5 I, K. q7 a8 R7 y when <constant_list> then! j6 i( g1 A1 r
<statement sequence1>;
5 z; s/ b8 l5 n when <constant_list> then1 y R% f. p' i9 p9 w! v# n
<statement sequence2>;
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else1 D! Q: ?9 U3 c3 U& r
<statement sequence3>;7 W7 q/ S0 v: b4 X! B
end;
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% ~8 l% P) T2 ]. u' h2循环语句, i" f5 E$ M Q' g
(1) from <statement sequence1>; T* B6 _1 J. I
until <condition> loop
: n8 q9 z8 ~6 f <statement sequence2>;
) G# z" O+ M z$ g+ j end;
: m6 K& v8 S6 N$ C: {& ]/ d (2) while <condition> loop
& T$ S% k: h6 L, a <statement sequence1>;
4 v& P" G' K* d% Y, Y( Z% l4 [ end;
3 u Q6 C$ v: D6 N (3) repeat
+ B( z0 q8 m4 d* c1 ]5 X <statement sequence1>;
q4 c% D# `9 l% ]4 |0 ?4 f until <condition>;
3 ]" t3 }( y8 T$ Z* c" Y0 S' | (4) for <condition> to <condition> loop
0 o% ]9 i* \' K+ u <statement sequence1>;7 g# \; z/ F9 ^9 R
next;. v$ M. }6 b6 _4 A( a6 l8 |
3中断语句
. E0 s# m' N% y) l" ?5 A waituntil <condition> prio <integer expression>;
9 g7 R3 o: r& K9 E; M9 K, ^1 ?& Q4 {6 V) }; T' B
9 ?- k% r) k, \4 r1 r. v以上为常用的函数！0 o; ]* r9 u% F# M6 I4 G& K
还有很多，如有需要我把资料发到你邮箱里
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