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发表于 2012-11-13 08:48:12
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1判断语句& o& j4 t9 _- N5 w c3 v! K
if <condition> then4 q5 f0 B; \& J
<statement sequence1>;
3 [, f4 A4 `* M1 w ]) S elseif <condition> then3 B! G& m6 |) s3 q- g
<statement sequence2>;
$ \ b$ X2 L3 m" s else . R; t9 c2 p$ Z; N
<statement sequence3>;
: O; V8 Q- C, v- f& M end;
4 b$ F- c9 \# S+ u7 T/ S& ]如果分支比较多，用：
8 [( r- v1 G$ a. I. V$ Z: h inspect <expression>8 {, G" D$ E0 X
when <constant_list> then
; `. [5 W& q) e/ ^5 s8 h <statement sequence1>;5 N% \* a$ j8 j! ^4 g) W4 Y1 ]
when <constant_list> then* @ D" T& G: ], m
<statement sequence2>;6 B1 G5 |' U# H
...
$ k/ \. g3 y/ N$ x% O else
7 |+ R4 m, J, Q% O# r0 A: y! z <statement sequence3>;
3 B" X' |4 c4 [4 F9 iend;
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1 ]; D$ U9 J) m$ M& H! \$ N: K6 K& x2循环语句: f) q- H* v- H. F7 X
(1) from <statement sequence1>2 `$ J1 c4 w" a7 ]: F( e
until <condition> loop
- F. Q" ` K$ P7 s <statement sequence2>;
2 ~6 D1 b- X( \$ @. f1 n6 K. m end;) Z' p( P8 C! P+ D
(2) while <condition> loop
' z% [0 F* Q7 K2 p6 B1 Q' q; t <statement sequence1>;0 o/ O% H8 u9 `) ?7 U
end;
1 F; U; B& {+ V8 d" @ (3) repeat
5 K. V5 \) r1 L2 a T: t3 v, ` <statement sequence1>;
( J+ A4 l2 E3 [- q* a( a" W1 z% `$ x until <condition>;
9 c9 Z, `$ Q( N( Z* Q' f, k- m: X (4) for <condition> to <condition> loop& E k9 A$ W0 o2 B/ l- a. v
<statement sequence1>;# i$ I6 x; k* ]2 V D( ~/ ?
next;( u) A- S, M& l/ ~9 E* k
3中断语句
) T4 @) w( b( J8 |0 V- q( L- @8 _ waituntil <condition> prio <integer expression>;/ w" j L; `3 ]0 x7 R
& h. e T ?, {, B2 s' R# X9 D3 \( G! L
9 z0 p1 h K4 ^' {% ?% \4 y1 E7 H$ i以上为常用的函数！
! B* ]) x3 c2 h9 G1 m还有很多，如有需要我把资料发到你邮箱里 & @" G4 S0 ]1 l' M' v' R
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