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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
3 X) o1 \: _& _1 @ if <condition> then8 j/ N6 G$ [, H# T
<statement sequence1>;
- A. S0 K: r) W& Y. L* m- w elseif <condition> then7 N# h: L/ Y- l: J% N
<statement sequence2>;
1 a' p. f# O; W. g8 y4 i else , V3 G. l* v6 ^5 j9 Z% ?% |/ j: l
<statement sequence3>;$ S2 k. d/ q5 \' d* e9 i
end;+ ^' d' r* \1 c1 o. x, c) {+ S* V
如果分支比较多，用：# X6 B4 k% ~% N4 Q
inspect <expression>
; D9 i! H; M5 t* K( y+ \: u) i when <constant_list> then! ~! w9 y8 l1 G0 r8 q/ b
<statement sequence1>;& Y, I& v9 U; h9 H. l- P
when <constant_list> then7 f+ ^- y+ ?5 k! \$ @9 Z
<statement sequence2>;, l, q7 e+ h8 [5 M, @( _' |
...
) A9 k' @1 t& ]% [/ w8 d: @4 K else
. N( a% e* q5 C& n) ^ y; l$ t <statement sequence3>;
& Z; c( L! V+ V, O- [: T) l! }end;+ l* f# V; \) G5 o( F
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2循环语句
: x0 _3 @$ g) u( E' q' g% {# ` (1) from <statement sequence1>/ I- v. ?1 c8 D' x6 H
until <condition> loop
% _/ q0 [" Q/ S0 n' K <statement sequence2>;/ F3 t/ E. S: Z) s W8 o9 p: G
end;# A+ x% w! s, C( H
(2) while <condition> loop
' \* m9 W, T+ c7 ? <statement sequence1>;
+ m1 Z& [9 T1 H0 T4 b+ S$ U* y end;% F2 ]1 i" |9 }& H; j, T% t
(3) repeat " W, e- j9 ]: |6 x
<statement sequence1>;
8 H) j3 ^6 c$ R' j, z5 V until <condition>;
0 c6 O8 O2 t! ~% c" F (4) for <condition> to <condition> loop
% l. _- ] k, ~& N5 e <statement sequence1>; j1 v: v5 N+ ^$ {/ m
next;8 P4 A3 b! Z- `( G/ T) ] A3 e/ ~
3中断语句8 Q' x+ b& L; C1 t
waituntil <condition> prio <integer expression>;( d* Q5 v( i$ N: R4 g K
9 j8 }$ O; r0 J+ W% b! R- s
/ u+ {* N3 L3 X# W. [% @9 O0 M
以上为常用的函数！
, t1 A2 k5 _" Y9 S) n5 K7 N还有很多，如有需要我把资料发到你邮箱里 7 l/ @% e9 j1 H0 V/ A7 Z! B
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