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发表于 2012-11-13 08:48:12
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1判断语句
# i' @( ^( T# [ if <condition> then8 e7 m/ ?* f% A* |# o0 _7 O5 f& X
<statement sequence1>;
$ M0 r' g& @4 t* ^) h( R elseif <condition> then# J4 ^: {! |2 a! h. L
<statement sequence2>;3 P- F: k H* Y9 j3 r+ t5 m# L9 ]7 L
else ; s3 n9 u; U0 t, P& _
<statement sequence3>;
X! ^1 q5 |* n5 B2 _2 S- S end;: J8 G" [* ^3 Q. P) J
如果分支比较多，用：
( J3 H, M3 L& N# U$ j p; | inspect <expression>
$ Z7 @9 K( B0 N% d2 ^/ @2 I; ^ when <constant_list> then
- U6 P& x; \0 w! h' s0 J3 a <statement sequence1>;
+ S, M6 h; h) {! Z, J when <constant_list> then
' K2 z9 B% A: T1 K <statement sequence2>;
[4 L- G: j9 q9 E& j# X/ t( b4 L' H ...; t- ]; l2 Y" z2 b; b- v
else* H/ h, ^# D, O, x2 O& U
<statement sequence3>;: o t8 m0 Y4 z
end;" ^/ v$ V1 B3 d) Q3 C
/ p* r9 u, j& k0 D0 S3 S1 B9 I2循环语句
0 D2 J" o, J% v. D% M) D! \ (1) from <statement sequence1>+ R- q: t' P4 O" n
until <condition> loop/ j- r$ ?2 L# |6 W% p4 ^, q
<statement sequence2>;
! ~* _3 @8 E0 G" X0 z5 `- H end;
1 q% \+ B: ^ Y# @6 U (2) while <condition> loop$ a b2 ]) U) ^
<statement sequence1>;! C5 b# ?8 [* ]+ c# A ?3 b, F" S* c
end;
1 `0 h! M; R, p+ ^$ y. _ E (3) repeat
3 B2 A9 Q/ A, f <statement sequence1>;1 }( v% F6 b& i4 |0 z2 q( r
until <condition>;3 |* C8 D8 f# \0 z/ P& O6 F: p; Q
(4) for <condition> to <condition> loop
# D' u# d" g6 w8 P <statement sequence1>;$ i3 F$ c- t5 s5 {3 q
next;
5 y' s% V+ m0 j4 \% e3中断语句
" R/ C+ r: b3 W' G8 ~* ~0 J waituntil <condition> prio <integer expression>;% B- [3 b. t# Y- c0 c3 `5 I
5 _. I& G% I& ]/ _8 }; P1 W3 ]6 n; @
以上为常用的函数！+ W0 @+ ?5 r. s) w& ]- x7 r2 `
还有很多，如有需要我把资料发到你邮箱里
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