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发表于 2012-11-13 08:48:12
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1判断语句
( Q( t! _" B- e; M9 q# V if <condition> then1 A2 X' w. R# M X
<statement sequence1>;
# [; y4 P" w. b2 n0 l+ | elseif <condition> then
) n4 c' e/ m3 C# H4 x& P <statement sequence2>;
+ t8 i; R1 \9 W; t! \6 H9 K else 6 _% l6 |# ~/ R8 M j
<statement sequence3>;9 r% U) `6 `( X `4 Z* i
end;3 y7 V G7 [: V& x
如果分支比较多，用：
; P" P, P( Z/ I+ L3 T% ? inspect <expression> _2 P$ U" x1 f: f2 C
when <constant_list> then @1 c4 c: x% v, ~- E
<statement sequence1>;
8 i) R& D. a: L/ F% t0 I2 [5 K! D when <constant_list> then
& H0 n( i: H1 N, N <statement sequence2>;3 G! `6 k" j- N3 J, c9 m/ C6 S
...5 X0 C6 V! n: W
else' m; y, f1 Z, W! ]4 R0 s
<statement sequence3>;
% ~! R* ^+ \/ f, k+ Bend;
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, o( B. J# g! Q0 t6 Z) Q2循环语句/ c* k4 S B0 z7 M8 J+ m
(1) from <statement sequence1>7 J6 ~/ _; T: \: y+ I: Z% O3 c
until <condition> loop7 V. [6 c8 N! e! H( g% P0 ~
<statement sequence2>;* s: D" u( A- X2 S$ X9 | V. v
end;! I" g) V. i+ i' O
(2) while <condition> loop6 r( [! B0 n: j- U8 d0 b8 X
<statement sequence1>;) C# ^, m. n0 N
end;( r8 n8 N4 \# [* @2 S7 y
(3) repeat
4 W7 r4 ~. o9 x% o2 }) X) r <statement sequence1>;( [' Q1 @+ U+ l
until <condition>;
: q" E. j$ g: P& i% ` (4) for <condition> to <condition> loop6 {$ X- N4 w# f N, [
<statement sequence1>;3 J# k# e* ~3 l; ?2 F
next;
* T9 u- i4 t' E- x+ P3中断语句
. t( u9 ~% n( c1 U waituntil <condition> prio <integer expression>;
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以上为常用的函数！
; w+ |) Y+ r+ i. O2 ~0 R' C还有很多，如有需要我把资料发到你邮箱里 1 H- ]/ S+ }( E8 o/ b3 l
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