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发表于 2012-11-13 08:48:12
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1判断语句! v7 |) \$ ?& b7 M( o
if <condition> then* n: l; O' @' y' Y5 n' M$ y
<statement sequence1>;
. t' s z) N5 m3 s9 y. k- y7 } elseif <condition> then: n7 g: ?( _/ P- `
<statement sequence2>;2 }3 z& e9 V# a0 Z. F4 @' Z7 J
else
; _. A; E+ Q, M' M6 d <statement sequence3>;' S* Z4 [4 ~4 y
end;
0 N3 A2 m8 G; `4 W如果分支比较多，用：3 i1 A* Q. ?' s, s' w8 `
inspect <expression>, Q. ]/ }, O9 O- ~' K6 u4 Q
when <constant_list> then
( P: s1 Y5 u# g) a4 i <statement sequence1>;
# X* A: p$ q* T" l when <constant_list> then2 [" I, |8 d7 I$ c% X6 E* Y
<statement sequence2>;
# b0 b7 V7 ]8 Y0 _6 t ...
" L" r3 f; J6 [5 }3 P' d else( S% ^* l8 ~: P; Q* f6 ?! W
<statement sequence3>;4 E! s4 K/ f I O l* ?
end;
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( [; r( W5 r- }8 g2循环语句) ]% v v; o' y2 e% Q
(1) from <statement sequence1>' V# }+ s2 g' P) ]( H5 ^" {
until <condition> loop
$ o* F& K& l( M( I <statement sequence2>; F! c6 {) }$ X2 ?
end;
" [: i: B7 ]1 d' n# O# }* R9 Q (2) while <condition> loop' @ c5 d6 v% h1 j+ q! y( [
<statement sequence1>;6 f# G" B4 b8 D4 ?( o+ D( L* U9 m. ~
end;- {8 ^7 K$ q" T6 l7 _3 m
(3) repeat 0 H# v! U& [2 w
<statement sequence1>;
: I: q* I8 y& y! m0 X8 b2 {0 c until <condition>;
, b* ~7 K) w" y7 R$ s0 ^" p (4) for <condition> to <condition> loop
2 u) l3 U4 [, c& z, S: Z6 ^0 k7 _ <statement sequence1>;
) [9 W; T: [' U next; ?" H* e" a( F* N) O8 u
3中断语句1 x: ]- q6 F8 m X+ w# s
waituntil <condition> prio <integer expression>;5 m8 y8 l# A2 p% f. A) f: t
$ W- F! {5 m% P2 O
# e3 v! b; D" j2 E, z以上为常用的函数！
0 F( H8 m6 o7 z8 I还有很多，如有需要我把资料发到你邮箱里
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