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发表于 2012-11-13 08:48:12
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1判断语句5 c8 I0 B2 A$ t% z
if <condition> then
# v; j$ v& I$ u5 i7 Y! f <statement sequence1>;
5 q4 Y3 {( [7 ^2 { elseif <condition> then3 f- P5 d* i1 G* c, t, @, h Q! W4 R
<statement sequence2>;( ^; D6 n& [ ?7 K
else 8 m& N7 d% t/ j/ L) O, m% Q& @2 X
<statement sequence3>;( k% V/ a* `& d; M5 ~; m. z: i
end;) \' f% q4 l* q0 c5 h
如果分支比较多，用：: ^! r- \. Y3 t K
inspect <expression>" o, G0 A# p2 U2 i
when <constant_list> then
9 n4 n1 P. V$ X! | <statement sequence1>;2 e6 ^( Z6 p$ j! X# ]) d
when <constant_list> then2 }- Y: n. y' g/ ^
<statement sequence2>;
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else
" j% [ O+ ~- {9 O <statement sequence3>; j4 D4 }8 K G8 |9 C' Y7 [' A
end;
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2循环语句
* l6 r9 c- Y i% ~3 K* T: v (1) from <statement sequence1>
, Z* K5 w& p* a" Y8 a( q: S$ f until <condition> loop$ a4 ^$ B& z$ U- a
<statement sequence2>;+ I" T# U! k# \
end;, A7 C3 O$ M/ ~5 k. H0 p
(2) while <condition> loop# `: P% z E j9 f5 |$ ?7 U5 x
<statement sequence1>;
, `2 ~! H8 t0 g4 Q5 a2 c' _ end;
6 }% b6 Y0 W4 }# K (3) repeat
2 G$ \, T. X# e* b <statement sequence1>;+ [3 @, _2 T5 ?" o- I8 _, E$ Z
until <condition>;
8 e9 L3 L2 i6 q/ ?$ [& e, [ (4) for <condition> to <condition> loop/ B3 e+ l7 F, K: J( e
<statement sequence1>;
) v. p& x- o9 c, U/ }8 z, `+ v; M next;! H! M* c- G8 o) Y
3中断语句
, @& O6 c2 X5 L- K( }/ I9 |' O waituntil <condition> prio <integer expression>;8 y, ]& o v' T9 K- {- }& {" q- s
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以上为常用的函数！
7 x# J) h a4 U还有很多，如有需要我把资料发到你邮箱里
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