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发表于 2012-11-13 08:48:12
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1判断语句0 [1 f0 g; k( b1 K# g, A
if <condition> then
L& A* |. p) q/ e/ Q3 R( {) {) J <statement sequence1>;" u. _/ F* t, a3 ]' m0 y" t
elseif <condition> then
1 k# S, Z& O( M- t7 r$ V <statement sequence2>;& a8 Q: e+ ?! T1 A) e% t0 i
else ) k- w6 b1 u4 |& x* i+ N: d4 j% \: x
<statement sequence3>;
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如果分支比较多，用：1 o9 s2 B8 ]3 x6 ^; R/ k" `5 G. ^
inspect <expression>
! {) M9 m. u2 Q- d# a when <constant_list> then! n7 Z; F) G: s. P/ L$ D
<statement sequence1>;
: L2 i. L: l, c2 {( h0 D when <constant_list> then
4 Y* I# j8 Z; y; i. d* S0 h <statement sequence2>;
5 V* L+ L, o6 ]* r$ r7 k1 p ...- n- y0 b* _+ ~4 A/ v
else& K# p6 k0 G4 _4 C# p) }2 B
<statement sequence3>;( `: Z+ X+ X+ }' Q# U
end;" _% s! g6 ?0 y( E! O( ~+ {) S! K* N; E
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2循环语句
" K$ c9 H5 f. t% t+ f, f (1) from <statement sequence1>
* b* `4 g: ]$ |& _ until <condition> loop6 p2 o% K6 U2 N, C2 X
<statement sequence2>;$ j* f7 i- v' {. ?! J; e
end;* c8 ?- Y+ k# p( i. l
(2) while <condition> loop
2 r& X9 X* t7 q3 X. [% y <statement sequence1>;, l; L8 U5 W) S, C+ G8 i0 |' ^
end;! T1 @, V" P8 s8 ?7 m& Z9 r+ h
(3) repeat
& c7 E- l" i0 O* j# [' m# D/ o <statement sequence1>;7 v9 `% u% k, ^, c! [
until <condition>;
- A# c1 h- F! l$ A( {% q (4) for <condition> to <condition> loop
$ g1 h/ a' V! l7 N- ?! j <statement sequence1>;+ K- C' Y: B a
next;4 k7 e( H; n* O3 \; L& X
3中断语句
7 N- C# E3 i C* h3 U8 T' S% `6 E waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 u8 Q: \: o( v5 J+ O) w还有很多，如有需要我把资料发到你邮箱里 & g5 Y {4 m( |( ]( ]
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