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发表于 2012-11-13 08:48:12
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1判断语句& e: |& U3 b" M+ {0 F, U4 x$ K4 P) b
if <condition> then y: a* m/ j# N% R% O
<statement sequence1>;; B% {5 P/ W6 @2 F; A* O
elseif <condition> then
2 ]+ u% g; x2 B4 H <statement sequence2>;
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<statement sequence3>;) k4 f+ @0 @) a2 G- j2 s! p
end;
: U) Y7 k" `: @* p6 ^' G; A如果分支比较多，用：
& c3 d* n& r8 Q) [, y9 S inspect <expression>
1 f7 ?0 j( G% Y; a' M when <constant_list> then+ n5 U1 V: Z1 ^
<statement sequence1>;
9 y8 f, u' e" B5 ?& ?* W when <constant_list> then
) f2 v, I" O7 s! B <statement sequence2>;
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else
9 ?1 [6 z& A: ^2 S <statement sequence3>;* M! A5 _0 S X
end;
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2循环语句
, Q- l9 o3 m: a. q2 r" } (1) from <statement sequence1>
$ I5 Q# G4 u' T. u' `/ ~ until <condition> loop7 \* E5 z% W# ^( P+ e" o
<statement sequence2>;
" }8 y6 T; U$ r1 V9 n [, y end;6 c& ^) ?* u- w
(2) while <condition> loop9 G1 s9 H; n+ F9 F- Z
<statement sequence1>;5 k% t; @" @4 v- l
end; Y# p; |# F% G
(3) repeat & O2 x/ j, ?7 G# }
<statement sequence1>;; z. W: l4 i7 n3 s6 F$ I
until <condition>;
- O) r- d; b: r I$ W0 c (4) for <condition> to <condition> loop
! |" X% o9 a6 b' o <statement sequence1>;' G; z6 O- d7 i# v
next;$ K# P% q) q/ y: D1 H: X8 Y% B
3中断语句* B$ Z k$ m: m4 H0 n |; R1 ]1 B
waituntil <condition> prio <integer expression>;8 f4 \$ P3 X! k! h! ^
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* A: L2 N- f) c; t以上为常用的函数！# K, s- V. c( N. h" q4 c6 q: S
还有很多，如有需要我把资料发到你邮箱里
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