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发表于 2012-11-13 08:48:12
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1判断语句4 U8 j+ L- Y+ }2 d
if <condition> then
9 K H3 d4 }5 T4 i7 e/ `. B <statement sequence1>;: ?1 p& x# t6 s/ I6 A( {
elseif <condition> then5 W3 r: g0 ?; \& ]7 Z
<statement sequence2>;+ ?1 d; Z; C" V$ L. N' ]$ J
else 0 H3 B; G$ [0 l+ R Q) y
<statement sequence3>;
9 V0 q: x1 C: p" j# S2 N end;
' b9 Y/ q, p4 H7 u6 m: X, k, T* W如果分支比较多，用：
$ m% A9 I' B! G5 c% s inspect <expression>
3 M% [+ C( b8 G9 q% I' h when <constant_list> then
; K7 |+ t- v- a. U <statement sequence1>;
2 c9 Q4 P0 K6 w0 E X when <constant_list> then8 }3 k3 ^8 t6 r6 c$ I* r e0 N
<statement sequence2>;
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else
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, I: _9 D# B% v& j* n7 |end;
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2循环语句
. D' h/ G7 p; B (1) from <statement sequence1>4 r' [. c- S, d: W
until <condition> loop
4 Q7 v2 [; [& D <statement sequence2>; Y$ x. n# ~# i
end;
+ l# p! _) s! u: J* v (2) while <condition> loop
: G; L+ w1 t- ]( r& w) w! d <statement sequence1>;9 U3 Y* }. ]+ j& k9 k
end;
. `4 y6 z$ u) p8 ^ (3) repeat ' G, q$ q$ I! x" k: S; e7 r
<statement sequence1>;4 a: n9 Z9 k+ u! w. n D$ X
until <condition>;3 X0 p, ^- I& x, Z# l
(4) for <condition> to <condition> loop0 F; B& W9 ]8 z; R5 E/ }
<statement sequence1>;- x. T4 {! a% L* ^5 T! {* P
next;! F9 n* i0 c1 i+ t4 A6 ^% z
3中断语句" Y6 ~" [/ [9 b. [3 k
waituntil <condition> prio <integer expression>;
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4 \/ T( i" h# I) H; J* N以上为常用的函数！' ~/ m5 S4 K1 U5 N6 v$ G: N
还有很多，如有需要我把资料发到你邮箱里 : h- t* o0 P) `- n% n/ z# ^
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