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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% ^3 F5 G6 m0 H" T" ]. } K | if <condition> then+ a. d0 m5 \) Y/ A
<statement sequence1>;4 a0 @+ D! ?- `1 x: Y
elseif <condition> then& O6 ] X& o$ T2 d! P
<statement sequence2>;% ~2 }1 F& R. L+ h
else 5 v$ K/ i. ~ O: R
<statement sequence3>;+ i: `) g; u9 J- p- \; w
end;
F% A8 b4 N0 \8 Q. S如果分支比较多，用：
6 Y7 E1 @' l( K2 J3 A8 ~ inspect <expression>
% u" [ o5 E! y( Q, b when <constant_list> then
% x+ Q3 w5 b/ i. F <statement sequence1>;. U( G2 w. {! T+ B5 b
when <constant_list> then) R- s. S6 c# I+ A2 |2 t- S
<statement sequence2>;
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else
# @! @5 P3 q. R; t0 V0 ? <statement sequence3>;
0 \$ c& d7 C1 Iend;
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2循环语句
' z6 e' K0 V$ o0 k (1) from <statement sequence1>
/ H0 z/ Z% g* u4 c% Q until <condition> loop a8 G+ L% t4 K) Q
<statement sequence2>;
" w/ u; k; E9 ^- x1 l; U& E @ end;
( \, e: E# `9 i6 K; W+ c (2) while <condition> loop, L) g- @: b/ r7 T/ s; h
<statement sequence1>;
( x+ n" M$ x/ P% w8 s/ V$ r- J) r end;: e9 U% ?; \/ V: n6 B, A+ O# {
(3) repeat . E* C, e" D( F& b: l. p D
<statement sequence1>;9 N: N% z; z9 S- N2 P" S7 V
until <condition>;
# l6 T7 Y& s9 c# Y5 @# Q7 d9 O# [ (4) for <condition> to <condition> loop
2 l) o/ b' L! O8 t5 ]( @ <statement sequence1>;
0 R, A3 G% x6 k& K: _ next;, j5 P' e& l$ Z' g6 ^
3中断语句
2 ^4 B4 p0 Y4 j( r( `/ {. t waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ E x2 v2 m# @3 J1 v' ^. `7 [5 `
还有很多，如有需要我把资料发到你邮箱里
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