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发表于 2012-11-13 08:48:12
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1判断语句
$ u/ C. `3 v0 ?, t if <condition> then3 \8 D; d4 a; ]9 e* W
<statement sequence1>;
8 d0 F* W3 y$ d elseif <condition> then% M8 ]/ S2 z3 s& K5 g! n
<statement sequence2>;8 i* B ?" Y( \, y. A( ]
else
: G {6 v2 N* r8 F2 J! i+ A: s <statement sequence3>;+ J5 [" O* b6 b& p
end;2 H0 W+ e6 v7 K- g
如果分支比较多，用：/ _, _" n. t0 r6 L! v% J
inspect <expression>9 _+ Y/ n; x* d: Y
when <constant_list> then
# x2 P2 X* }3 i" y* M <statement sequence1>;
: G* A& i7 ?$ Y& c8 _" ^ when <constant_list> then9 T, _5 C/ X' w- A, p
<statement sequence2>;
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else
" K) v% v" w0 a. @0 f( w |# H <statement sequence3>;3 z1 m4 ~. A+ Z3 z* H
end;
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; l, C# ^. |+ _# K5 H2循环语句
* q7 M7 K( D* @# E7 w (1) from <statement sequence1>
3 _5 G4 I! N' N$ c: K; k. K) {, S until <condition> loop/ [& K4 i1 f F3 W0 B! L
<statement sequence2>;. Q: Y- u. S& F% W+ i# p: \5 v
end;
) q8 z2 M! n. F" Z' R! D3 Z8 a (2) while <condition> loop
' N: O8 A0 V6 {6 m <statement sequence1>;; y9 X8 R( F# G( _- I" i x1 A
end;9 V3 R0 u6 w' V5 j: i: R
(3) repeat 6 O! b3 s. ^# U O5 ]/ F
<statement sequence1>;0 x( O) h' |7 \% B* I( I" d
until <condition>;9 L1 t& j I" T* @6 L* p+ D
(4) for <condition> to <condition> loop: V" v: r& K0 ]) k3 v: i; T
<statement sequence1>;7 z! V& U; G. M/ b/ Z5 K# R
next;
# j: \( w9 ]: L, n( P3中断语句
# i7 x8 {3 ^: W( w5 R waituntil <condition> prio <integer expression>;* f8 c1 Q: I9 Z- a- `4 @% I
6 g/ r& ?( c0 O; V+ {% D/ \6 z' [4 e. x
以上为常用的函数！
$ v! Q$ y) {, |0 j t5 ^% o还有很多，如有需要我把资料发到你邮箱里
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