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发表于 2012-11-13 08:48:12
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1判断语句5 m' K. ?4 I4 L! c! c3 j
if <condition> then
5 K7 E$ `3 P* I1 M% L+ A <statement sequence1>;" Q: s" W9 @8 e) J
elseif <condition> then
d0 }+ G7 i4 D <statement sequence2>;7 m* A& N4 Y" j0 Y0 D- X$ w
else
+ Q5 r8 ^7 R1 r6 N4 G <statement sequence3>;! r( A# s* f' y- i" s
end;
4 \& L& ]! u3 \- g3 j/ q如果分支比较多，用：
# v4 h* m' {9 L+ Z9 B+ } inspect <expression>
. \% o: m. }; D; I: D1 d% k when <constant_list> then( [! p9 s0 z8 Z, \3 l- E
<statement sequence1>;
) B, e/ R& M9 H4 \ when <constant_list> then
/ O9 ?. r. f2 S* d- `- R% p <statement sequence2>;5 I& K$ ]5 W. Z. w0 l
...
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<statement sequence3>;, \2 b8 }) u. f7 G1 r* I" O
end;
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2循环语句
4 h6 r% d" m9 _; i+ P: L (1) from <statement sequence1>
3 v, T1 w4 D9 f/ W: ] until <condition> loop
9 j; {; j: m+ z) N7 j1 J) E <statement sequence2>;( V- d# g( f* f: Y9 U
end;+ n3 v# O1 M) ~; g% l8 ~- k3 M
(2) while <condition> loop% b) m$ Y7 l% B% C2 E! B
<statement sequence1>;1 E5 h( V( [& w8 J7 A! @4 e [7 c' \/ i
end;
& V, w, W% E0 e (3) repeat + h; {" x6 L0 `. X3 o
<statement sequence1>;
) Q1 t! K& D: ^% M( H; r+ W; v; S' M until <condition>;5 v, K! {& i/ Y* F' y
(4) for <condition> to <condition> loop$ R5 n) z1 {, t
<statement sequence1>;2 D! c! y; o6 ]4 P
next;1 t) [1 X ? r S
3中断语句
0 c0 P! `8 {% j2 O8 F waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ a0 D1 ]% y/ s1 D4 X$ R
还有很多，如有需要我把资料发到你邮箱里
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