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发表于 2012-11-13 08:48:12
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1判断语句( Q: W/ n* I; E K- `
if <condition> then5 v. C7 v, f+ s7 y; s( H; G# h/ H
<statement sequence1>;* u. O m4 i: L0 @( B
elseif <condition> then+ W" x1 D$ C, v! s9 z1 g
<statement sequence2>;6 ?" w4 B" ?, @
else 0 A+ ]% v$ A' _
<statement sequence3>;+ E7 x9 F, L% }' `
end;
7 @/ b' @+ v& e, a如果分支比较多，用：
& k3 I# x2 Z/ S$ D. J) o inspect <expression>& u" Z6 C( ~5 X9 e+ c" T! f
when <constant_list> then8 g6 O) T2 G9 V$ `1 @$ R3 U2 w5 @& o
<statement sequence1>;
4 a" d) J- L; [2 E M when <constant_list> then
- }5 ?) b- `( a- i9 B) t2 ] <statement sequence2>;
2 ^ ]1 Z- l- J k ...
2 o4 Q8 {7 j/ N else
. h2 f$ o: q4 K- \ <statement sequence3>;
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% `" B$ x) a% s+ ~" }$ b1 c2循环语句1 I4 z( u% _# ]
(1) from <statement sequence1>8 O5 r5 _0 w8 ~8 D$ |
until <condition> loop2 M0 t: y+ i ~4 R' F U0 H! v
<statement sequence2>;
" L) ?3 }1 Q. v7 S# _( } end;
9 u: L8 G4 \* x& d5 _* [) x (2) while <condition> loop" S* u9 v3 ~' f: u) r2 v* U
<statement sequence1>;" ~+ l$ q8 t- G/ D/ s) d4 c5 N
end;. u: ^6 X- I0 E' r2 x0 _
(3) repeat
* `; n& F! Z' y: [% j <statement sequence1>;, n" F* X4 @' ~
until <condition>;
$ u7 u# c% W Z% l5 A (4) for <condition> to <condition> loop" P1 @7 r2 P0 f& C* S* X$ d* s
<statement sequence1>;
5 ]: v/ _- m# i. z next;! r! @1 c% J6 I3 ^ v: w
3中断语句2 w2 m& P% a! p/ H
waituntil <condition> prio <integer expression>;: z; ^+ e i7 a( _5 E' O: b
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以上为常用的函数！; d, { f4 p5 p* |4 g/ g' P
还有很多，如有需要我把资料发到你邮箱里 6 p0 ~$ F* Q8 U" m; O
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