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发表于 2012-11-13 08:48:12
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1判断语句8 \: A- i! L' u4 b
if <condition> then X; q, W0 h& k3 U
<statement sequence1>;
\. N8 |9 Q+ }5 q- v9 V elseif <condition> then' Q# u: F) o. c0 z
<statement sequence2>;
+ _* a& v U) I; D else $ W" S% Y& z' D9 m
<statement sequence3>;
0 z3 a; t1 Y! T( U* v' x end;' x+ a, L- F' T S) E6 ]9 p
如果分支比较多，用：% m9 R8 |5 m7 d' B$ m; p% d) X9 @
inspect <expression>- @# F$ ~' w8 L- t2 S; k
when <constant_list> then |0 S! I. ^. T$ C
<statement sequence1>;3 C1 q( X* y1 I5 M4 |$ \) e
when <constant_list> then
2 z2 k# }0 e1 ~5 M <statement sequence2>;0 f0 u4 e) V# I4 D9 D: f& Q
...
+ b$ |5 X* u: x1 K( [% e else
6 e T% l, a. m/ S9 `; D <statement sequence3>;6 a. K& d( W. X7 C, w9 H6 t7 N
end;
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2循环语句/ m$ [/ C: ]& j1 }( Q" K
(1) from <statement sequence1>
. S* R; d* s& m. A+ ?$ ? until <condition> loop
; N% j+ |# K) \% X <statement sequence2>;% n( B$ c- C( P# }- S& `
end;
7 s/ h) b- C g8 e6 s+ b$ U) i (2) while <condition> loop$ R( x2 r% ^; V3 W: Q. ^, M2 |) `
<statement sequence1>;
& g2 C5 a9 Y: R# ? end;
0 v* U' g4 S4 E) @8 l (3) repeat . |& @7 J$ m( u. t
<statement sequence1>;
: x5 n6 {# ^) |6 k until <condition>;
4 \ b3 C0 V% G. V: W (4) for <condition> to <condition> loop Y; \, v& e, }5 L3 d4 }
<statement sequence1>;" \8 {/ v/ ~8 s4 X
next;
* v9 }: w6 T1 a' j, |- X3中断语句
. h" w- }/ t& N, @9 j waituntil <condition> prio <integer expression>;
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以上为常用的函数！
Q9 B A0 I9 G5 x _5 F' c还有很多，如有需要我把资料发到你邮箱里 8 y" C5 L9 L" O5 m) J
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