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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% v8 G3 V7 [1 I
if <condition> then
$ {, p2 L7 y; F <statement sequence1>;3 G2 ~# d: |4 O E( R/ C" o
elseif <condition> then
. T3 m) X0 {5 P% H+ i9 K <statement sequence2>;) ?* `5 u0 U3 x
else
8 k% F$ v7 r3 u9 | l3 x7 Z <statement sequence3>;3 [6 D) q9 b* q- W( v# Q
end;7 U" Y& O4 T- N% n9 \2 N6 h& J
如果分支比较多,用:$ P" Y+ W C+ n- l
inspect <expression>4 ]+ d) K) d0 Y7 U% G" C) k. h: o
when <constant_list> then
/ c S5 R3 f: ]/ m0 E9 B- a# H! w <statement sequence1>;/ d! g! L" ~! F) d
when <constant_list> then# _. c+ ?4 e- i
<statement sequence2>;
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else
2 w, ~# L" J4 z' g9 ?. o <statement sequence3>;# S2 a2 N9 k! c! E
end;
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2循环语句
+ ^$ D ?$ Z5 [ (1) from <statement sequence1>
}" k7 P! ^8 T% {4 v until <condition> loop
, \6 I2 I" l9 N: ~) {% |2 k/ U <statement sequence2>;
! {4 l2 X! c: ?7 \' m0 r3 w end;
( g. ]6 {# I0 o( u8 v7 A% g! D (2) while <condition> loop
# F; [8 X" \& X: d0 ?& l& ? <statement sequence1>;# I9 H V' J3 ~+ F, D: ]
end;
. L. h. F% d0 A/ H5 K% ^ (3) repeat
( v, `; R' g: J& }8 {% H9 O <statement sequence1>;
* J+ I+ Q2 W' S7 H/ u2 [3 A6 n until <condition>;' a W; m* h7 N) w Q
(4) for <condition> to <condition> loop
! z8 P# W2 w ], | <statement sequence1>;
# V; d. x- N$ {6 {* L. _/ H- B( q( I next;
0 C' L1 Z% v( P3中断语句, Q6 s" E/ @5 l5 Z
waituntil <condition> prio <integer expression>;# o* E0 h# q# C- A1 ]+ b2 e
/ T+ N4 F9 O0 w4 a% m
7 x; M2 v3 H5 B8 }以上为常用的函数!2 |3 W$ y* w8 W2 \* G* O; I; n: r
还有很多,如有需要我把资料发到你邮箱里
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