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发表于 2012-11-13 08:48:12
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1判断语句) o; r3 H+ H, k8 B
if <condition> then7 D5 Y$ \3 q5 J$ i* \
<statement sequence1>;
% p+ C1 R& O/ d; m: K elseif <condition> then' L* T! S0 F6 i4 n' D! r
<statement sequence2>;
. P9 ?- V$ I: a; N1 l" N else
) H: ~+ ~7 k L7 E <statement sequence3>;
* g! D$ n' n9 {# ]+ k$ E M) M end;; w; S0 h; K& Y8 |; A5 k# F
如果分支比较多，用：
& ]4 g: z, m* k. U inspect <expression>$ a6 b! h0 G2 W8 z: t; G% \* C
when <constant_list> then/ i) i/ w, {' z/ T7 O5 M
<statement sequence1>;
7 b: l6 C9 |- g" U# e" J when <constant_list> then
1 H3 h+ ~1 y1 j& P9 O5 G <statement sequence2>;
) w" p6 U$ {4 e0 B ...
# c8 V: U$ ]0 [% r0 A! U& E else
4 t4 Y! u) l5 k# x; F2 u+ t, [ <statement sequence3>;% L4 m& @) j h* g9 m
end;
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9 ^6 ]1 w0 y% u5 g- h9 k) H2循环语句2 v# Q0 h' R$ a9 {
(1) from <statement sequence1>" G3 Z5 q- L c/ [, k8 f
until <condition> loop9 W6 {, j# a0 |- z* M' R( f
<statement sequence2>;3 n; {" g/ y% i( m. s( f' e
end;
. ?( V8 ], L5 P' P: x4 w' X4 j (2) while <condition> loop- K( q n8 }. x- `
<statement sequence1>;
; b* v ]. R3 v! r; f7 K' z end;
% g( p+ }/ ?* ]9 V G. ]+ ?, v (3) repeat
7 n; e: D+ r9 \$ [/ ] <statement sequence1>;
( P V+ l, Z9 E# e until <condition>;: w, F5 G, Y \; q$ ^1 n
(4) for <condition> to <condition> loop. X' X" B% x8 Z/ E* j) K9 |
<statement sequence1>;: L5 y" C6 A% X
next;
, Y% h; q' |( J4 \# v( [# T3中断语句
3 y8 |0 S# ]5 c# p; k: T4 [ waituntil <condition> prio <integer expression>;
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9 F$ a/ s0 a3 v4 o
以上为常用的函数！
" x( r4 B& ^" ]1 x* Q还有很多，如有需要我把资料发到你邮箱里 . M4 B' Q+ H; s
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