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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/ `, F* O* f6 \$ r
if <condition> then0 n$ m. {' I: C3 Q
<statement sequence1>;
7 T0 J. A5 w( n8 T* t$ g4 F elseif <condition> then) s; B N6 G3 n# `5 F! k, b
<statement sequence2>;8 H8 I' x1 o. b% F: l6 i
else
8 J7 `1 Q7 B F- o; ? <statement sequence3>;/ w( G9 y$ j0 F; }# y) B' [
end;
0 k# U$ v, ~; I# A如果分支比较多，用：
# T' @* ]: Z8 Y& @/ P! w inspect <expression>. R0 V0 s, S+ o+ C
when <constant_list> then7 I( S( |) o" l0 a) ]
<statement sequence1>;% W* C, H* X$ s" [. w* t, w; R
when <constant_list> then
% G, q$ q) H5 S( s <statement sequence2>;7 q$ i# A& L4 ]9 {) i1 u
...7 P+ Q6 U; w" L+ h' b- @" J1 _
else
& e9 V5 y! P& {+ ^& R <statement sequence3>;. g3 j3 e( }9 s; [. r" S! H
end;
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2循环语句7 q; v7 P! M$ d* Y% d
(1) from <statement sequence1>
; y. X' i6 v/ K- G until <condition> loop
1 `* }6 Y# u8 q <statement sequence2>;
2 B' b3 s" x, }9 g% g end;
, e) k$ B& S9 n |" s (2) while <condition> loop
6 U4 j. S: N/ F+ P9 m( b6 |3 S <statement sequence1>;
1 d+ A9 g0 |1 t+ D9 z) I6 \* T end;
5 H7 Y3 h" I' y2 Y1 o; ~, X) n (3) repeat * _( x& F+ X7 L+ \5 N
<statement sequence1>;
' \( l; b% E* |) ] until <condition>;
) N, q8 X5 }. a$ e6 ~ (4) for <condition> to <condition> loop+ _6 h# [! e: [0 i0 N% \
<statement sequence1>;4 h e) {# @, h+ p# E
next;/ k F/ `# \& T+ d/ v" D" L2 W
3中断语句
" t3 A* W# {& J- e6 `: @- q' i waituntil <condition> prio <integer expression>;
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以上为常用的函数！" Z9 [; {# E- O0 ^
还有很多，如有需要我把资料发到你邮箱里 $ ^3 @* e& @) }: E# W
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