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发表于 2012-11-13 08:48:12
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1判断语句: |: K1 }) ~; T- Y
if <condition> then; z4 g* `' N5 r( e/ E6 o$ @6 }
<statement sequence1>;/ Q$ m$ S8 }* M+ I2 E: Q# l
elseif <condition> then5 f$ K6 r: E% r! |- M8 J& U
<statement sequence2>;2 N; `5 r7 m1 m2 | p, Z" b' D
else 3 U% v: o/ o0 C& N K' z5 G
<statement sequence3>;
. h: h- u: A% t" c end;6 A, c: C9 e5 V5 p$ Q$ x
如果分支比较多，用：* y. g$ `+ B6 @$ Y
inspect <expression>( d& t& @. z4 ]! t( P( m
when <constant_list> then6 {$ [/ L" J, J) _0 _2 u" G" K
<statement sequence1>;1 t; y) G* k1 E( B% E
when <constant_list> then# w( B9 D: [' T! E8 Q8 R: _
<statement sequence2>;
0 P& [- l. y; y m( o1 o/ g& Q* b ...
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<statement sequence3>;( K6 ]8 q6 |) _2 L5 `* Z) A6 ]6 x" s
end;
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2循环语句
) ]" _9 Q# Q7 ?6 ~/ r/ _ (1) from <statement sequence1>8 i; R* d# a! }$ o, N0 d7 O
until <condition> loop
2 [: ?4 f" X+ u <statement sequence2>;
# m# b. `1 s& q end;
6 N$ P$ V8 J- Y! Q' g (2) while <condition> loop
8 I: O0 U5 `0 c- |% F; a" i <statement sequence1>;$ F6 B( }2 _1 n' U( s
end;& ~7 M0 U# C; d) b) z9 |" n5 i
(3) repeat 8 w0 c+ T. ^- H0 b
<statement sequence1>;
& X5 M! R0 f3 T4 E until <condition>;
$ w7 \4 I7 h' z5 k (4) for <condition> to <condition> loop& f. B0 h9 L6 o) x8 ^$ Q
<statement sequence1>;8 p d% X+ L9 S, w. P/ A+ J% Z
next;
; C2 N/ R2 P# f) c. @3中断语句
: E! ^" a* ]4 n: Z8 i" n waituntil <condition> prio <integer expression>;" _$ Q( F! z8 Q% M2 v ]
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以上为常用的函数！
$ U5 U7 S: e" i% H6 c9 x5 Z; D还有很多，如有需要我把资料发到你邮箱里 , W0 `# M; W' c! M
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