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发表于 2012-11-13 08:48:12
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1判断语句4 {! r0 p, G& h3 e
if <condition> then
- H3 y. O6 A* a. N8 `/ Z <statement sequence1>;
* q3 `* F) j# g3 }2 C4 Y) b* y elseif <condition> then4 ?6 g. U' b0 f+ l
<statement sequence2>;5 x% }) z: ^' N6 \2 P
else
. ~! T& O, s8 {* S m6 [; ^ <statement sequence3>;
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如果分支比较多，用：
1 {/ }1 E8 |2 c( r o inspect <expression>( c1 d7 R) U8 t' {! ?, X3 r: b
when <constant_list> then( X0 M2 G1 ] l1 R. r7 l
<statement sequence1>;
+ ]* |4 \: ~5 B- t0 d8 ~! U when <constant_list> then1 w( {7 L8 v0 m4 ?- Z+ ~8 F
<statement sequence2>;
" `4 o$ M* A0 n! }; d- K8 |$ l ...
; g5 C6 \' N1 C6 J else
, b: O: `) M4 E' e% r, F <statement sequence3>;
) e, h/ p! }+ \: t/ h3 ?- ?end;
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2循环语句
2 o7 Y0 k# Q: B0 ~1 j1 O (1) from <statement sequence1>6 N" r( `0 U- y+ o3 U- H0 [
until <condition> loop# i- t. e# l: U# @
<statement sequence2>;
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(2) while <condition> loop
+ b$ ^! a+ ^9 p3 G: a; q: E( o: | <statement sequence1>;' c5 E! z; Z, v) s
end;5 e" W6 r# {5 d6 L Q( [; Q- S
(3) repeat $ t; P2 \1 I8 }# g* h% C5 d2 B
<statement sequence1>;) C8 P: s' m. B/ g( t. ^+ X) g
until <condition>;) r; i9 A, a: i- F# R1 E' M
(4) for <condition> to <condition> loop- J5 v, r. L5 l% ~; z
<statement sequence1>;0 k' b; c) x) |3 \8 s
next;3 Z0 B8 p( ~6 n% q4 ~* j& _
3中断语句
1 U3 C7 G; b9 X$ v) U- B waituntil <condition> prio <integer expression>;2 `6 y$ @3 v- K% E
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以上为常用的函数！
: Z9 m- { F5 a还有很多，如有需要我把资料发到你邮箱里
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