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发表于 2012-11-13 08:48:12
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1判断语句
( h/ o: F* g1 c) _& |5 n if <condition> then
/ E/ p( I8 L/ E3 l& i <statement sequence1>;& y* l. ?! m, Z. U4 y1 s
elseif <condition> then, o. E" x! l; l- o7 f) o/ w2 V
<statement sequence2>;* S9 I/ Q( v1 k8 Y
else % f9 C$ b" V6 {6 B* }, m7 w0 k
<statement sequence3>;+ r6 m$ V3 j% t8 G$ @ f
end;) I" P* h% F6 R) x
如果分支比较多，用：
n$ `8 l" G% F: o* r5 P, u inspect <expression>
" l$ x; t8 E! J* u; } when <constant_list> then
( A! f! l2 f4 M+ \- A1 D } <statement sequence1>;
8 A: X( t8 X' p) c when <constant_list> then$ S6 b! M7 O* t9 u9 ?
<statement sequence2>;0 o; o5 f% B& f$ x
...6 a$ L, v; X4 ?6 U2 z- }; {8 T
else
. U- v% f" \% A <statement sequence3>;
. n! D S; A- }% c+ ]end;
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2循环语句7 n6 U, A5 H* `/ J6 m' P3 v! ~
(1) from <statement sequence1>0 C: Y4 k. m9 T) y w
until <condition> loop
( m& @! c& ^8 r6 @' M <statement sequence2>;
; {* ?" A8 S. `3 ~; E3 }. ?* h end;. L& v6 Y6 ~9 @" d, m# X
(2) while <condition> loop* z" s4 v3 s) r" P3 `
<statement sequence1>;
6 ]% R, k1 a- U8 u+ C6 b end;; }! w- R3 k* j
(3) repeat
7 w! G: q% J2 q <statement sequence1>;8 F3 o/ x1 F! U5 W
until <condition>;9 K" \6 Z7 Z- J& [1 t0 I
(4) for <condition> to <condition> loop
' g+ V$ q4 W5 [& w( ?/ ? <statement sequence1>;
. Q( o9 d$ Z$ e' W6 p% n next;
* v/ I) j/ V* S; {4 ?3中断语句+ N! \) [* J% H- Y
waituntil <condition> prio <integer expression>;0 `! K# b$ {8 o- x4 c% C- G4 d6 t
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6 ]# H) u, l* M4 z( |: \
以上为常用的函数！8 f+ p# L& X/ D& y+ z
还有很多，如有需要我把资料发到你邮箱里
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