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发表于 2012-11-13 08:48:12
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1判断语句. V$ y0 T6 y0 y5 M
if <condition> then/ f3 d* t, P) p; D
<statement sequence1>;+ e" d- ~! Z) j
elseif <condition> then
0 A, y& d4 [' I- e7 U! } @6 T <statement sequence2>;
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<statement sequence3>;- W) O6 g- g2 x* [! ? m
end;/ R r8 H5 U9 c& U$ K& U3 F4 ?
如果分支比较多，用：4 M, w5 g; t# ]$ m; r8 K5 m
inspect <expression>
: U K P) K" R8 | when <constant_list> then6 D7 x" Y: [/ ]' l% p8 H& M
<statement sequence1>;
. d4 y+ D+ \% z2 }# k8 k when <constant_list> then: i Q1 Q; W8 K& Y0 [) Q d* w
<statement sequence2>;: B: q- B4 G, ~/ P x' n
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else
) v7 {2 y) U" F- I6 d( ^% c/ _ <statement sequence3>;
# Y, K" I/ Y) m* R/ L, Gend;
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) |7 Q9 f* m w: Z2 x; T' h. _$ W2循环语句
; ]3 i4 b% v" w9 ^- v# w( U( o (1) from <statement sequence1>8 s2 `: k6 Q; z$ f
until <condition> loop* u( y' P5 }2 r
<statement sequence2>;$ @; ]( M+ r3 m. X# O
end;
0 O! n( X1 L! x' _ (2) while <condition> loop, B' J+ `9 i7 f/ X) H* @4 f0 F6 K
<statement sequence1>;# y3 N& V1 ^& o/ q8 e p
end;
0 N+ V$ J# O! b, S7 O (3) repeat 9 \$ {& Z1 }8 R9 M
<statement sequence1>;
) y& H- i, n3 f* \ until <condition>;; ~# P# n# i$ k3 ]" K. F" p0 }. A# @
(4) for <condition> to <condition> loop7 r: K0 p: U. c' Z% T" D
<statement sequence1>;
3 P# _6 ^9 A! E$ X; ^/ P* |) S next;
1 I) ]' P) m& F% [, [3中断语句
5 ~9 @. W0 H' W, z# [( H waituntil <condition> prio <integer expression>; Z3 y' {& ?! K5 L1 @6 S* T
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以上为常用的函数！
" [" Z2 K5 _# c6 r% r g还有很多，如有需要我把资料发到你邮箱里
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