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发表于 2012-11-13 08:48:12
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1判断语句! a( G t4 s" `; p1 O: D/ }
if <condition> then% E2 _( x4 `" k
<statement sequence1>;, U- r! f, C' `, }
elseif <condition> then
$ `5 B; j1 i0 B! W# W3 ^ <statement sequence2>;
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<statement sequence3>;
0 \$ b$ }: u" ` end;4 v, _1 P3 M6 o
如果分支比较多，用：
5 H5 e* _3 j2 m inspect <expression>
: i" N! J6 `6 X$ r3 w4 e" l8 l$ V when <constant_list> then
1 W, F% ^" g; A/ p1 b3 h# ? <statement sequence1>;
5 t7 P% D4 }, ?5 N& G) Q when <constant_list> then( B2 `, C2 p! I
<statement sequence2>;
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else
5 B# J, C0 a( \6 _ <statement sequence3>;
) G _/ S) w6 Z; r( cend;
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2循环语句
# y2 T* ^! |7 L$ ^- T# | (1) from <statement sequence1>0 S4 m8 _; W9 D i$ h- Q3 H2 K
until <condition> loop
# O8 q: b* e: k$ U0 T <statement sequence2>;( k1 p/ K$ O6 i; x: a
end;
! g/ E# D, k% x5 x; D9 m (2) while <condition> loop
4 U j8 Z C; [ <statement sequence1>;. n s7 j. }: z8 ]" e) f5 R) e
end;1 X! D% L. q, k+ R- d
(3) repeat 7 N; u! Z: g/ V& [0 P5 ]
<statement sequence1>;7 g' a% Q, l$ S$ K
until <condition>;0 p j4 P' v& d& Y9 y& y; B
(4) for <condition> to <condition> loop
/ M/ L7 S6 Z3 o5 B! w1 |2 P* K6 h! X <statement sequence1>;) I: Q. M; \ h! j# N! l& `2 ^
next;: [5 G! e" U6 X- F" ]2 K7 Y
3中断语句
. Q4 {5 l1 V2 m# _0 i waituntil <condition> prio <integer expression>;
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7 k1 Y0 Y0 z* L8 J6 P以上为常用的函数！( l9 Z$ X1 C9 {9 E' O3 E; X# _
还有很多，如有需要我把资料发到你邮箱里 - N! q" Q9 H3 m! m
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