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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;7 z) g9 L+ K$ B y6 h0 K
elseif <condition> then
3 E' a A' A/ J+ C% H' G <statement sequence2>;! p" J: @- D* g4 q
else & r9 h: J1 @6 D; p
<statement sequence3>;
, S2 }4 \2 I( B; b4 ? end;
: Z5 g5 a5 c- K! [! H如果分支比较多，用：
7 k) \$ ~4 A, O4 V, p+ Y: ] inspect <expression>) N0 h; B8 Y5 ?. E. c1 k2 a/ |
when <constant_list> then' T! B; ]5 o. u6 d5 S" t+ k: y
<statement sequence1>;! z: N9 n2 x6 `9 k+ }8 s+ F
when <constant_list> then' y6 o! P9 {6 E1 l5 |
<statement sequence2>;, ?( t! {, D# n% w
...
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<statement sequence3>;1 \! b4 f: d, r, ]
end;
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2循环语句
# D* e- l2 i% k+ T% { v7 t (1) from <statement sequence1>
* T5 Z0 V ^$ Q0 n. h1 Z, k until <condition> loop
0 p, ^! h) H# R- }* d# [8 S$ H3 m <statement sequence2>;
( q& P8 n' A" T) I/ y& u" R7 U. z end;* k+ h. V7 O- k& X) T* N+ c" h
(2) while <condition> loop/ F. n7 j# e, ?' P3 f, ~, l, A, k+ r
<statement sequence1>;9 P: `1 G- D; a3 K6 K. ^$ z
end;8 [" z0 ^! A2 g& _
(3) repeat : F4 y; w! p! D
<statement sequence1>;
0 T' b! i3 e3 O& o1 n) e until <condition>;$ j* H4 V0 ]1 e
(4) for <condition> to <condition> loop+ D. D. m% [5 y5 [9 [; e; Y0 ]6 V
<statement sequence1>;
# U% V8 P! C+ M- K( Z next;
: c6 V" N. v3 w6 s+ Z3中断语句
* N: z: P1 A& w; `: |6 [ waituntil <condition> prio <integer expression>;9 O2 u# u, W3 G& [4 e
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以上为常用的函数！
: y5 l y) B$ g r0 H& o( ^还有很多，如有需要我把资料发到你邮箱里 9 ]; _$ {, x1 O
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