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发表于 2012-11-13 08:48:12
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1判断语句4 W5 E9 Z- t* L5 U
if <condition> then
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elseif <condition> then
1 ?* L" B9 B! j( V6 H <statement sequence2>;
3 B' H2 ]; I7 c$ y. A' ~. B0 {0 z5 Z ` else
( l6 K3 i. u7 A <statement sequence3>;
' J& v- p5 r! Y' @; @6 c; `* j end;
0 X( z4 Z9 [0 U2 J) m Q* }9 P L如果分支比较多，用：
+ q2 d, n; ?. F# E8 Y1 E/ k8 Z inspect <expression>
0 s7 W7 r2 D& n& r; y, X, t" X when <constant_list> then
2 ^+ P( m, b8 w/ a8 n) K <statement sequence1>;/ g- I4 |/ l9 `- t" {
when <constant_list> then2 D/ ?7 `7 `& |' Z
<statement sequence2>;
/ L* O0 F9 }+ |- l. P; \ ...
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<statement sequence3>;# ~/ K# x7 A) V! G5 u
end;
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; q- s4 m5 T3 s9 z# E2循环语句& I( R. ?* M- U1 Y+ |
(1) from <statement sequence1>& h% U2 Z6 q) O: }- u' S
until <condition> loop
: z0 R* N) [0 A6 G0 q7 K1 U <statement sequence2>;
2 S6 t, X0 x8 n9 X end;4 u9 T* g: @; y8 p; W; ^/ @+ n: D
(2) while <condition> loop
" C8 j1 R( C/ @% l) d% d <statement sequence1>;
- B+ e$ v, u2 I: o end;
* ?. k0 Y& C# U9 n (3) repeat
4 @1 r6 j$ v, Y7 i) x5 l <statement sequence1>;% |2 G6 m6 f" m/ m
until <condition>;
6 E; O8 u) O& ^$ }& H (4) for <condition> to <condition> loop7 ]7 g* X4 o# B1 e2 ]. h! V
<statement sequence1>;
. Y) O6 M3 G& [! l2 { T next;" P% c. A A i B$ c
3中断语句& u. @8 |' T1 \
waituntil <condition> prio <integer expression>;/ W3 {2 t; N4 s+ {
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以上为常用的函数！
% z3 ]: x& x( u, A. K5 z还有很多，如有需要我把资料发到你邮箱里
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