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发表于 2012-11-13 08:48:12
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1判断语句
3 I7 |! [' }) w+ ]8 q8 d: S) F( ^ if <condition> then
0 L: Q9 d! T: @4 M) v4 g9 Z <statement sequence1>;
- Y$ g$ f. c) ?8 s8 n8 q elseif <condition> then# `" Q4 ^4 N3 F# m$ Y& z7 y
<statement sequence2>;
* T( r6 ]) [6 Q. q7 C$ w- ? else
# H/ X W1 V4 \' g <statement sequence3>;- d- y' X1 O4 Z! c) {% @) [/ A
end;
* r2 q1 {6 N% U" m如果分支比较多，用：
4 d0 \# I: v2 E1 K inspect <expression>
4 _# |6 l9 T: A! i2 i! _1 M+ m when <constant_list> then9 n; E9 @7 i8 R, ?7 o7 Z
<statement sequence1>;
( L( x& g- W# }+ K( Y when <constant_list> then( G& N) e! a2 i
<statement sequence2>;5 a6 ~; z& ]( Z) W
...
2 L' d& u* |/ }/ s7 n% } else
( P4 U6 s/ c: k8 Q <statement sequence3>;
8 T: s5 d: ~; z0 v! ]end;- S. C3 J, j0 T/ k
- K! A. U7 \" J; x
2循环语句2 l- w8 J T/ m2 O W/ [: i0 ~* f
(1) from <statement sequence1># v7 H t, v% i6 u' S {2 W
until <condition> loop1 i8 H+ m3 o! @/ d0 v: r
<statement sequence2>;
1 W/ W d" X; n, |; C, F& w3 v end;" T7 [& A" x8 H- l$ e) Q1 k) m
(2) while <condition> loop
! x2 n/ W* h+ { ^2 W) k8 R <statement sequence1>;
2 J3 ?$ F6 S7 V- @. b- P# |- p end;
' t8 B# W& @# e* o (3) repeat 7 ^1 e, C& C( @- r2 O( B
<statement sequence1>;
1 s7 A6 x2 C7 B6 ]7 _ until <condition>;
! [, w" y7 H% p1 p& X (4) for <condition> to <condition> loop
; j! O m6 N% C, E k <statement sequence1>;+ ]; N$ y3 j* d' O
next;' H( o# n& e; m* d3 Y) X1 ?9 u
3中断语句, O0 i2 ?$ i% k% F9 o2 \
waituntil <condition> prio <integer expression>;% j% @$ x# l$ f6 e/ N2 q
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以上为常用的函数！2 b& `" T. p! e* ` `6 R; \
还有很多，如有需要我把资料发到你邮箱里 ( V* U4 c9 X. R9 y% j
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