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发表于 2012-11-13 08:48:12
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1判断语句6 e9 Q# S3 L7 y# X
if <condition> then
9 V0 @4 O( T0 U* o5 \# w6 M <statement sequence1>;
5 [7 q7 p7 ^# f0 O3 Y4 c) X# G elseif <condition> then9 D/ z7 _3 O! C4 l4 l7 j! y: A( o
<statement sequence2>;
$ [1 z3 V) W' J else
6 d/ N& Y7 r$ ^/ m4 i0 U <statement sequence3>;! L4 i X* u, k0 f" x
end;+ H1 Q+ U, P8 i' Y. ^( f
如果分支比较多，用：
* g4 I1 d: B' D; m inspect <expression>; W4 I: j1 M* o
when <constant_list> then
Y4 z/ S2 X) u <statement sequence1>;* d! }* _2 g# Q! }2 v7 z1 d/ j
when <constant_list> then
' y$ {6 t+ d. r# O) K' r. R( p <statement sequence2>;5 y: z1 U+ d; X
...
2 j( W; E5 U; A" ?7 M else. k6 t" x- {0 G/ s9 F
<statement sequence3>;
9 o+ |. C6 u; Rend;$ U' o4 J$ y$ b" h) h
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2循环语句( P: n# R. J" @7 }( `
(1) from <statement sequence1>
2 f9 l/ k2 r$ N' v7 w) C. M until <condition> loop1 A9 n7 h6 B# |7 v+ Q4 E6 ~3 X
<statement sequence2>;
R% {. u" D0 n: _# E% a" A end;
* j+ n5 p/ k( j6 M" _ (2) while <condition> loop" S+ _5 ^& e& Q4 m! y
<statement sequence1>;/ n/ J& L' O. P) J' `
end;
2 `1 ?: n }' h; X' c! p" @: _ (3) repeat + E) C: |0 q7 A7 A$ Y# d% r" s" ]
<statement sequence1>;: X6 o% n9 O/ L2 ]2 ^
until <condition>;
6 F3 ?! B6 G' {# | (4) for <condition> to <condition> loop
) j0 M7 [ N* x9 F; J/ g0 n <statement sequence1>;
- j# ]8 n% t" S next;
, Q! t5 a% v, v# o) r' R0 `; x3中断语句
" s2 n' K! J v' J, w/ { waituntil <condition> prio <integer expression>;
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以上为常用的函数！) F( T A3 n. ~* D& R7 e* ]( u8 E
还有很多，如有需要我把资料发到你邮箱里 # N, ?) H& j& Q s% P
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