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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
( Q' r6 }5 O) T if <condition> then' n8 P$ Z+ Z2 T4 O% x( r& w
<statement sequence1>;# R+ d5 Y/ Z4 d- e
elseif <condition> then2 F+ e9 t7 Z1 u! \" q5 o
<statement sequence2>;
5 j5 j8 l. _9 r0 r$ z else 7 ? O% B% C% y
<statement sequence3>;0 F1 }6 L6 p6 P9 K% J1 u- k# K' `
end;4 h. O/ `' f0 ~* ^+ `
如果分支比较多，用：9 m" G: @; k) z. u8 M
inspect <expression>
" K$ y) c/ t" i% h+ ?1 f* U; W when <constant_list> then' O) G2 w; [4 r+ i' l$ t y
<statement sequence1>;+ w4 a( R! v/ _ K0 t* h
when <constant_list> then
" A( d$ W, o0 B! n. P <statement sequence2>;& q: T" E; O. ^4 U0 K. d
...
! d- Z$ A9 o& Y) h else
: ~' A8 w, O/ b) [; Y0 l9 C. F1 Z <statement sequence3>;# i: C3 {' w f! l! H
end;8 x3 i8 P$ l I! m/ `) f" N
3 \. ]9 A* V+ W2循环语句/ Y6 Y9 V! z5 b5 I+ \
(1) from <statement sequence1>2 X' Y* k$ p) h8 l
until <condition> loop
( I: r5 a8 [$ v/ h <statement sequence2>;
( ~' r! y: h c0 Q5 l9 _- B3 E end;
: I+ G) {% {9 C8 h5 Z" T, T. Y+ \ (2) while <condition> loop
% @$ p, i0 [$ M6 k* A7 c8 P# D <statement sequence1>;
* h9 g" H8 h, `% W% R/ Y( t8 ] end;9 d6 g; E) U/ e3 u3 Q
(3) repeat " `9 k; R- {7 W
<statement sequence1>;
7 q. c' Y; g0 [" u6 v until <condition>;& T: u0 h" c# @# T* Z, G" E9 E
(4) for <condition> to <condition> loop
# z" Z% J* K8 \) y8 Z ^7 m <statement sequence1>;
0 N3 N8 n/ Q% P& Q! B next;# w" d* E/ O7 C4 b
3中断语句
' ^. ^5 f2 o! p# z- W |) ^ waituntil <condition> prio <integer expression>;
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W! l, o* h7 H3 M2 [1 ^8 U" \! i
0 `. w4 G. p; L. T5 I/ @, e以上为常用的函数！
; ?/ H& x4 j! Y% S' U还有很多，如有需要我把资料发到你邮箱里 ; I3 Z& I+ f5 Q
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