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发表于 2012-11-13 08:48:12
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1判断语句- E" F" M; B/ B, Z2 o
if <condition> then' _) p( R5 D6 c1 d2 R
<statement sequence1>;2 P$ p9 U) u, a7 F6 g2 S
elseif <condition> then
% J$ Q1 ?1 X ` <statement sequence2>;
7 n1 `3 y' b5 u" |" J else
* `3 J2 N/ W* S% T* K <statement sequence3>;
& X$ e7 S8 L% z5 i. | end;
1 w- \! t5 f* Z; }/ K$ A如果分支比较多，用：5 S0 s9 C, m# V4 Q2 z: A
inspect <expression>
7 v1 K/ u8 u% t3 P9 M6 P6 a; | when <constant_list> then) m6 F& E7 G& S
<statement sequence1>;
9 E( h. g1 ]& ~$ y when <constant_list> then
/ C- U5 Y0 d* V5 q) A- G/ } <statement sequence2>;$ m3 C7 m$ ^: R" K: F
...
0 B( D/ r8 C* D% C. f0 A4 z else
2 S( {1 D t7 {. U) C' d <statement sequence3>;
* q' P3 q. O" ~0 q3 j. ~" |) }end;
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: u+ u1 d/ h* I9 Y4 p) U2循环语句
" |2 @6 v& G. G& R) {9 t: S (1) from <statement sequence1>
# u. |' n, I( w# s2 a0 O8 i until <condition> loop
# [2 D7 p# X! _ u. B$ ?* ~1 {3 i <statement sequence2>;; R/ P: D; V! Z) C; P* Z
end;$ J6 o) |( b8 S
(2) while <condition> loop( M* e$ e2 ~, ?8 z& M0 m
<statement sequence1>;) K. p6 _2 A4 s3 i
end;- b/ \+ C+ H- c& q' P
(3) repeat
0 ]5 q6 e" K# W t# \, v <statement sequence1>;! g9 V# `' b' v: D" @2 c/ e
until <condition>;8 v8 v! h* A; @
(4) for <condition> to <condition> loop, l- ?3 m% O* R9 m' t5 W
<statement sequence1>;
+ o3 K f7 i; @ next;
9 B+ M4 e2 f, A, Y5 j6 }3中断语句
/ b. n: x* a* P; T. B0 U9 @! K waituntil <condition> prio <integer expression>;2 y t! R" W6 h% C
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以上为常用的函数！$ e+ D$ g ?6 c* R- x( _( }) I, c
还有很多，如有需要我把资料发到你邮箱里 ( C& E9 J0 v4 ?- z5 v
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