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发表于 2012-11-13 08:48:12
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1判断语句- w2 \/ u! U" d, P0 b s2 t4 ]6 M$ V$ @
if <condition> then
) x C) v/ r- j, J% F. ?$ O0 m( s <statement sequence1>;5 m: ?, G. A* D
elseif <condition> then
# F& D- x, f# ` <statement sequence2>;
' ~5 _/ S2 U" ~ else
0 ]4 F; N# W# V8 v& J8 Q. u# A! ] <statement sequence3>;
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如果分支比较多，用：6 J2 e4 D. O4 o" C9 Y$ w4 o
inspect <expression>
$ {" p1 P6 b" Y/ B when <constant_list> then$ q5 L; P) f! l1 }5 I$ `
<statement sequence1>;
1 g% m5 R. \# G# K& ~7 E7 k1 Q when <constant_list> then
$ [# v0 y4 C& _, h7 E: @ <statement sequence2>;# l0 h4 i- W5 e: `! i6 A7 g
...8 Z( O( p9 |$ d0 J! ~9 V j
else
5 E* q5 V* m/ d j) _) T <statement sequence3>;* P3 N5 u# |% ?/ f; E
end;
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2循环语句1 Z$ x: @1 p- G; a" X9 ^4 ^
(1) from <statement sequence1>
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<statement sequence2>;0 j8 c) A3 u/ }1 E
end;
1 z( S1 R& X# R9 D2 w/ G (2) while <condition> loop
) j& ?+ Q. P* q% E9 m! I( u <statement sequence1>;2 S) K t7 Q% ^2 A5 q J5 @
end;; \/ h3 I2 d) J- D# u8 D' u
(3) repeat
- B% s+ P+ B8 S& p3 `: }( q. i <statement sequence1>;4 L( r Q+ f: Z
until <condition>;6 \2 [" v D: ~2 ?5 w
(4) for <condition> to <condition> loop" O$ P+ N* l) r5 ]' [( S* L: ~9 u" h0 n
<statement sequence1>;7 W: v. V7 r/ X% P4 Y# g* h
next;
1 g( v& M7 x! a/ B s. _3中断语句5 n1 q: C1 g0 N& }
waituntil <condition> prio <integer expression>;
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以上为常用的函数！' @5 k( s+ D \& Z
还有很多，如有需要我把资料发到你邮箱里 2 }% p& @2 } U" s
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