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发表于 2012-11-13 08:48:12
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1判断语句% w8 {1 W0 ?* U @6 ]
if <condition> then
+ }# o( G% t# @* C <statement sequence1>;
3 a9 l) \% H/ N/ q elseif <condition> then
5 E! X- }8 {, e <statement sequence2>;7 b, ~ Q2 g- D5 o
else
: b& d7 B# m) C, U/ w% o6 x4 C$ @# F% A <statement sequence3>;0 c. g! B) y0 w- }4 ^
end;0 e' }1 v1 z: w
如果分支比较多，用：
1 ~& M/ F3 M- S& L. w inspect <expression>
& V2 T9 ~/ d* m' \ when <constant_list> then8 D" S2 B* @( Y+ x, N/ |
<statement sequence1>;
: M/ L3 z& z+ i1 Z2 f0 C when <constant_list> then* ^# [# i+ B, Z. K$ \
<statement sequence2>;
+ X: _( }, l; z: S. e ...) n: {1 ]0 m. u. x
else
9 |6 }5 l2 D2 ]' |9 M <statement sequence3>;
9 U- U7 Q: J: G# u' b8 Yend;
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2循环语句
, A) x7 }* D0 u, u! w (1) from <statement sequence1>
0 D+ p7 E$ K# c. f until <condition> loop
+ l& q: T; f$ K0 m0 Z2 {( e <statement sequence2>;
& c& j5 Y" t; B. b end;
0 D: Z$ q* C7 v* G* h (2) while <condition> loop
0 P6 f: Q+ Q9 C0 e8 t5 d: } <statement sequence1>;
: y" ?7 _6 R& \$ g4 V5 U% k' a! O end;
' p9 Z) T$ ?8 Q6 o5 r0 V* ?/ n0 | (3) repeat
; J* U$ M% \! a* o2 V% ? <statement sequence1>;% `' Y2 s. z) c( [! R/ X
until <condition>;
& ]8 r: f! p" }# ?6 Y- j3 p (4) for <condition> to <condition> loop
' T2 j6 |9 x c <statement sequence1>;2 Y8 P# F7 ^/ f5 I9 Q. X+ C# s
next;
' {4 M4 |1 c1 r# s3中断语句
/ W7 ?* g" d0 O8 C waituntil <condition> prio <integer expression>;5 c- f; j2 \3 c0 [
- t1 w& u- i1 Q% O5 @& r u7 T# {/ i% b7 _, B
以上为常用的函数！% a* h8 A/ x. p7 R$ T; v
还有很多，如有需要我把资料发到你邮箱里 ; {) X7 {" a8 T0 D$ I
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