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发表于 2012-11-13 08:48:12
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1判断语句
! E6 j( E( M# C0 X" L if <condition> then9 n/ T2 j2 d) S' e8 x7 H8 X
<statement sequence1>;3 ?( a) |' u. L- c: l) a: h0 D2 B4 p
elseif <condition> then0 y8 R5 F7 A+ I; M: j
<statement sequence2>;' q1 Z6 Y" Z% q: k" B
else & w& O6 @4 E8 Y
<statement sequence3>;# e E6 K7 P/ a
end;
+ k6 B+ g5 f$ g& R; k如果分支比较多，用：
* U4 y7 y2 E* C inspect <expression>
/ V2 L5 s5 L: A3 K: ]( u" z when <constant_list> then
# w+ q) p2 x# Q6 Q$ f. t; s9 q8 P <statement sequence1>;9 r6 c* T+ h. n' C" q) A$ \
when <constant_list> then* y& T/ I8 \" a
<statement sequence2>;) r1 d# p3 E$ A$ v5 g
...
, t2 s$ e3 R4 d, e else9 N* \5 W+ ^/ O0 ^8 r/ H
<statement sequence3>;" @, O7 O6 w1 R1 f3 j2 n
end;
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' r2 h$ E6 Z% Q# o2循环语句3 u4 U: e0 m$ {; O
(1) from <statement sequence1>
0 y8 |' ?) F. j1 i6 A0 C- I9 j until <condition> loop
% A: B. L5 i! s ?3 ` <statement sequence2>;
0 k; D$ U& V0 X# G2 \3 r end;
# c. h) A7 ^1 s, i0 y (2) while <condition> loop4 G8 R6 |# O% y- {, e5 }6 C- k
<statement sequence1>;( z* b. i! d; e/ F/ E" f
end;
6 ~2 }. s# o8 z) K* y! Q$ n2 } (3) repeat / V6 n6 }& @* q1 n$ _+ _
<statement sequence1>;
7 j: U( f! q# t( L until <condition>;
# _5 [, z$ ?/ m (4) for <condition> to <condition> loop% y% h a5 N8 ^. n/ q- P3 N
<statement sequence1>;6 @5 S k. L' N P( H3 i' Y8 J; l
next;8 l6 Y! P" i4 C4 A+ T' a2 J
3中断语句" K1 o4 h/ ]+ R7 S! F6 Y0 E
waituntil <condition> prio <integer expression>;
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/ `2 R7 b* ^: W2 p$ j* k
/ R$ w3 [' c( D. e2 f3 c; u6 s以上为常用的函数！
" ]# Z# Y1 {6 X* p) v' q" Q$ n还有很多，如有需要我把资料发到你邮箱里 ) q+ \1 J( H' t/ G7 e: F
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0 U# {# \4 ]$ k" W5 T1 Q6 ?
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