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发表于 2012-11-13 08:48:12
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1判断语句
. D% V8 t: Z! a/ b3 v0 t if <condition> then) K. e3 |& \( g2 V3 g& \& F; d, O
<statement sequence1>;
7 G* y3 u6 G/ q4 v) O elseif <condition> then
% b3 A/ k' z) T+ N& _( I# a <statement sequence2>;* q3 n, E* {6 g3 d! @
else 1 I+ {/ z6 A1 O9 f* w. p( j
<statement sequence3>;# U# p7 ~- p0 V& M% x f! [- J# J
end;
* W; P0 k( Q+ u( g如果分支比较多，用：9 X1 l8 x4 }: E3 S/ ~% P
inspect <expression>
X2 U e& s# n- J$ @# h when <constant_list> then9 V+ c$ p; m& Q! f! _
<statement sequence1>;
# `" `# Q8 @- S5 h9 b1 ^ when <constant_list> then
+ I3 @3 e9 Q$ g <statement sequence2>;7 z: g7 \5 D! f- Q( r9 z1 D0 |; b
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else
1 }0 z! L: W3 U0 o5 I8 t4 A) j l <statement sequence3>;
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9 r0 X! o4 [1 ~: m2循环语句# z( H5 g3 z! g' I0 O, Y
(1) from <statement sequence1>) B' i8 I0 I: ?) o
until <condition> loop
2 l% u0 f" H! c8 O% l& r <statement sequence2>;
- [/ C( q' ^$ @8 i end;% q+ a! Q" P# ]
(2) while <condition> loop
4 V$ ?& m8 H; ?' b" E: ~9 I <statement sequence1>;
w/ W, I' }; M4 B end;
1 e. c3 R- T. T1 y4 l (3) repeat
8 q& m, i3 i. I% Z- d& u <statement sequence1>;8 P8 C; B* l) L: a
until <condition>;
8 [' V$ p8 |3 ]" H (4) for <condition> to <condition> loop
' p3 J% ~; s$ B3 t, ]3 K9 ? <statement sequence1>;
8 }7 w: f9 v2 o next;
0 A0 C! \- v) t/ J, X* ]3中断语句- H, L' Z: p( n T+ l
waituntil <condition> prio <integer expression>; w% w c5 ^5 y2 [$ t2 r
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' H" I* Y/ i9 W6 o以上为常用的函数！
9 j4 [# M6 @1 B; h$ y3 G5 C. j还有很多，如有需要我把资料发到你邮箱里 . l( E: j: B; S) G* D9 K$ ^
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