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发表于 2012-11-13 08:48:12
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1判断语句
: R: F% @5 u$ k if <condition> then
7 I: h9 C2 U7 Z7 t( ]& `+ l! d; ^ <statement sequence1>;
, x6 K& ^9 i+ q elseif <condition> then1 B3 l' F% `# `2 i+ T
<statement sequence2>;" F5 P' _$ x$ H8 q' b4 o
else # i4 F# f" ~7 v+ J# A$ R
<statement sequence3>;, }. ^1 ^% r0 i7 O: f" Y
end;" J1 V5 }& u$ T9 G; w0 w
如果分支比较多，用：
# W: o. D5 m5 b2 G inspect <expression>
) j, I! k- E8 B, D: T0 W when <constant_list> then
; g) u5 B: X0 M1 D <statement sequence1>;
4 X5 T+ W; |* V1 [6 U7 K: [9 J when <constant_list> then
" G8 ^/ G2 k# _$ ] <statement sequence2>;! S: G8 X, C) p& c5 L1 i
...
6 w) \! Z& y& ?9 T% ~ else
0 D2 R" Y; i* t <statement sequence3>;
# t7 m t) g' t5 hend;
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0 R* ?" y' o$ V9 z# y2循环语句
$ e; B) P+ G$ l1 I9 U3 v9 v (1) from <statement sequence1>
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<statement sequence2>;0 W% b% B# S0 t/ }* v, O
end; _& |' ^) ^7 _9 I! C- [+ ?4 K
(2) while <condition> loop$ c- c O7 {$ h$ K
<statement sequence1>;1 c) q, z$ F# c9 z
end;7 {; C1 z8 P1 s2 D; ^) O
(3) repeat
, j1 `( J0 S) H) Y$ c( ] <statement sequence1>;6 W- M5 C) M; o
until <condition>;
; v. S6 D' f! G, e" v* w, u' ~) v (4) for <condition> to <condition> loop$ ~9 B' X2 g% l( E: M- R
<statement sequence1>;
4 x }3 p v8 T0 f next;
( b4 o! @8 [. J( W) U* I5 e8 y! m1 m3中断语句7 w+ M5 G) R! w9 [+ M
waituntil <condition> prio <integer expression>;
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以上为常用的函数！- q5 \" B4 X/ d2 J3 I6 B
还有很多，如有需要我把资料发到你邮箱里 : A0 T7 i+ U& h$ J& n: K9 b
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