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发表于 2012-11-13 08:48:12
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1判断语句. n; Q0 Q8 J2 k* L
if <condition> then
- ~8 b1 J$ q# ^( d1 \/ h <statement sequence1>;$ H& S9 j5 a0 H/ ^
elseif <condition> then
5 a4 A9 S1 k3 x+ @8 D5 Q( M; { p <statement sequence2>;3 _. F; Y6 p" t; C
else
; e* K) j/ j t0 \ <statement sequence3>;
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如果分支比较多，用：: p9 j8 R7 d! ~7 l/ D
inspect <expression>
+ Z1 e; L+ g: K$ O- b, e/ j when <constant_list> then
- M$ a; {! @$ Z9 j5 K$ j0 n1 c <statement sequence1>;
: H a$ v, D+ r% H when <constant_list> then, e! ]0 V3 a2 j5 f9 y
<statement sequence2>;
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else6 ]) B" R9 u0 U# Q* R2 c' P1 z c
<statement sequence3>;$ R# C' p$ H5 {" C
end;
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2循环语句2 C6 Y# A5 H( ], X d9 ~# p
(1) from <statement sequence1>, L7 X; R" T' t+ Z
until <condition> loop) L- Z; y3 f8 z
<statement sequence2>;1 h# U! G+ N) B4 b$ [3 I
end;6 p$ f' C2 e2 F" A
(2) while <condition> loop! w4 _. P* K5 B! Q
<statement sequence1>;1 I- n+ ]& l: X. i6 g/ s. ]6 e
end;
9 Q, N" q V3 Z1 B4 d" R0 d (3) repeat
# I/ B8 S6 [2 ? t <statement sequence1>;
) u. `; W. u B Z6 k. ~ \% I until <condition>;
2 M4 i2 K$ g& y; d' \ (4) for <condition> to <condition> loop
9 J% x; z) a+ Y) Z% a <statement sequence1>;7 C: {# M @2 P& H+ u& i
next;4 G4 U) v+ e. [6 [, ^
3中断语句
+ U" O' W# r2 h P waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% A1 H( I, F3 W0 N, x9 X还有很多，如有需要我把资料发到你邮箱里 2 o9 ?2 k- l# c/ I3 `
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