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发表于 2012-11-13 08:48:12
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1判断语句
7 O* E0 D1 S: C) K( s/ V+ p: ~# B if <condition> then( f$ ^8 d' v$ Q+ I
<statement sequence1>;
+ v: I" r& p2 ?" Y7 u |+ b$ E& F0 } elseif <condition> then# ~2 m7 L- ?' h) A
<statement sequence2>;8 j) o- j/ A& ]2 {
else ' _5 b( A# T7 o, |- {; J2 Z
<statement sequence3>;
/ v; z3 K* x: ^ F. d end;3 E0 ?. K; d7 z3 q
如果分支比较多，用：4 U; b5 k9 H& C
inspect <expression>' G# }! b( g5 W) B% f8 }! j
when <constant_list> then" m( m% E5 O* _; ]: c' [
<statement sequence1>;
* L2 j/ S8 v/ J: |4 z, V when <constant_list> then
! U5 t! _) X/ P# R6 f( o! F <statement sequence2>;7 @% @4 s. E; b% S
.../ s- l& G# H0 W
else
, y6 m; C5 `$ _; _ <statement sequence3>;' \; d& \0 x, a# o) y
end;4 r J' u" z1 \8 T
# v: r- g" T: P/ J! @ ~3 m2循环语句7 i6 ]; A) ~' L' W
(1) from <statement sequence1>
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<statement sequence2>;
4 i% g7 F& d( h( s) P7 ?! X end;, P$ V5 K2 T! t, U
(2) while <condition> loop
& q+ C0 s; K$ h2 l; j5 `! N <statement sequence1>;- {0 n( ~7 p: ~: H, B2 }& h/ S7 `
end;
9 }5 @! H1 c1 u! A (3) repeat
' [* _% X+ n1 v <statement sequence1>;
7 D, m; _; L4 l g2 @: w until <condition>;4 B* n5 l" t2 R. W# @# B( O5 T
(4) for <condition> to <condition> loop
3 Q R, X" O9 p* o <statement sequence1>;
" u5 X; ?0 `- f# q9 x next;
9 X8 K4 |) T( ]/ y3中断语句
r0 M# S' G% Q5 |9 H4 Q waituntil <condition> prio <integer expression>;
, E+ m/ k1 f( E: Z& x' ^3 e# j* ?* [, d/ `& S
9 m3 K1 {7 {/ P" e+ V! P2 q以上为常用的函数！6 \6 M; o, ?4 x) w* `
还有很多，如有需要我把资料发到你邮箱里 7 {5 G7 O/ c* }
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