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发表于 2012-11-13 08:48:12
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1判断语句+ p2 p x4 T N0 _6 @+ s
if <condition> then
7 ^% a4 U, O/ W2 Z+ N: p1 h W <statement sequence1>;! U( v! v* l; q2 E+ u& i, R
elseif <condition> then( Y; u# \1 M9 D# p) {
<statement sequence2>;
z# X$ u. w& `3 j7 m& @5 C/ { else 1 M% H" Z, m6 i0 p$ t- I
<statement sequence3>;
T' _7 D8 Y1 v/ Q end;
7 q" j) C% u2 W6 v3 Y6 U9 l如果分支比较多，用：
9 y3 j7 e! m) E0 h3 m5 Z inspect <expression>
& [$ }& d0 A& z. x when <constant_list> then
# n4 v$ F1 j A8 Q% a/ d9 _8 U <statement sequence1>;* \3 [( {9 @, |. N. N$ Q' A
when <constant_list> then
) e8 Q% ~; T- Y1 n+ k0 R$ s <statement sequence2>;% H" Z! x8 f* D$ B7 |! c
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else1 S8 A' O. g$ V2 N6 O$ ~7 A+ \
<statement sequence3>;' J# A6 ~! Y5 @0 U' [
end;
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2循环语句+ S; B# ]1 F" d
(1) from <statement sequence1>
, r( |' \4 D& Z) H9 F$ P' Y until <condition> loop
0 v- q( [" t3 x% h5 b$ y <statement sequence2>;
* Z; l' T5 i0 K7 n8 H# d' I# J end;
/ b4 Y' x1 W8 ? (2) while <condition> loop2 }/ M U6 e7 B1 W c
<statement sequence1>;+ Q( f- s! f# [# `0 c
end;
3 \$ ?' M7 R) N7 X/ u+ R6 D (3) repeat
; I3 o4 t" s' @" p* b1 x0 Z4 N+ k <statement sequence1>;- c+ k; g) ~, Y" W6 c4 f4 ~
until <condition>;
4 w6 x# M% H+ ^$ u; m (4) for <condition> to <condition> loop) ?) {1 m4 W K4 V/ i! @8 X* f
<statement sequence1>; K# Y( p6 s+ g3 V. n
next;
, E) p/ N$ M$ h3中断语句
: s% d7 j2 Z; B( G2 o waituntil <condition> prio <integer expression>;
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$ O6 f# n" R8 t以上为常用的函数！ J& E# q0 a+ p3 I, D' t- Q8 c
还有很多，如有需要我把资料发到你邮箱里
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