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发表于 2012-11-13 08:48:12
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1判断语句" {2 u/ c8 j( |. Y& a
if <condition> then
0 x: R( Y/ @8 i; S) Y <statement sequence1>;
# l: a; _# F1 b8 g1 w! U4 Y% A/ ` elseif <condition> then
* E8 d/ c/ z( q( s( s' ]' _4 I2 h <statement sequence2>;
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<statement sequence3>;: ?9 R) ?8 ^7 B2 X, ^
end;' {: |; h: w$ k
如果分支比较多，用：
8 { g0 M6 f: r( v4 I4 _9 N4 v inspect <expression>/ o' r" P! Q- G# F) n$ m2 o
when <constant_list> then
9 m% z) N9 R5 q( S: d/ f <statement sequence1>;* u* G/ f2 C. {' x7 w6 D
when <constant_list> then
4 m; V8 E+ @5 i( q3 [/ u5 e <statement sequence2>;2 @) a( ?$ R% Z$ G0 t
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else$ Y+ }! J& ^; R$ R: ^3 q
<statement sequence3>;( D0 S) Y/ n9 t/ u* [% d" Y% k
end;
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$ D$ s0 j' l+ L1 \; S9 D2循环语句$ d F8 d% J9 A$ I+ ]( Z2 n
(1) from <statement sequence1>$ K, q. x6 v2 a4 z
until <condition> loop' F8 J1 {) O+ N* P2 o$ D- E
<statement sequence2>;2 |4 I4 a* V- q' X
end;
# t E/ x5 Q) _9 D( S' n9 ^2 X& I1 r (2) while <condition> loop
7 R3 Q c2 ~( R5 t7 W, ?' _ <statement sequence1>;9 @& X, I5 q9 I: m, X
end;
5 c+ b) e3 M# d4 R (3) repeat 5 e6 C& @; b$ f$ n. D# n
<statement sequence1>;' E+ e* W2 M' z1 o9 `8 Z
until <condition>;
; [; W$ d1 N5 \' j; |, Y (4) for <condition> to <condition> loop: F1 B2 u) U( k% ?! ^- \
<statement sequence1>;0 }% A- I5 K C) d3 _+ F
next;5 c2 _! E0 p. h$ I s0 N
3中断语句- Z j4 q& Y7 b6 r+ x8 Q3 \5 V
waituntil <condition> prio <integer expression>;9 Q2 |) w' G1 o9 {% [' E6 V, f
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以上为常用的函数！
+ b) p: k8 y* i4 N7 X' ^5 i还有很多，如有需要我把资料发到你邮箱里 . {) ]5 O* p5 q. T
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