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发表于 2012-11-13 08:48:12
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1判断语句- Z- H1 P6 U: G, ?# ?, Z5 s
if <condition> then, A/ H2 ^2 e& Q8 v
<statement sequence1>;6 y- @. \- M% O
elseif <condition> then
3 R6 i- r+ X" J: B: ~* N <statement sequence2>;3 @3 H- F! N! O+ @% e; p. R" B. a
else
! ~1 n( X! e4 z: V <statement sequence3>;
A, Q6 E$ F5 n end;, L% S9 r0 z9 F7 z3 l
如果分支比较多，用：
' N0 |* c2 W$ v4 i inspect <expression>$ k9 o6 ]- f1 b* L, [2 n
when <constant_list> then
9 B. e3 q5 d" a, R# f. G" ^ <statement sequence1>;8 i# ]/ _0 l7 g, ?5 f! Z& x
when <constant_list> then
- D: A) }. f4 k' b <statement sequence2>;* j; c. X1 }' G# u! q6 f# d3 Q$ ]
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else% v6 W" x+ u5 C1 ^; a( r
<statement sequence3>;) L/ |9 c( X i* n+ I# v
end;
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7 b3 R2 N8 Y' m1 W' v( ?2 |2循环语句: g. E5 _3 e& ]& V& ^ T
(1) from <statement sequence1>
! X) j. m0 z/ s9 J3 l/ h6 j until <condition> loop/ `# P. A# M3 k5 P$ d! z7 q
<statement sequence2>;
" X) U2 ?7 J" f( K) Z end;
! k; b) B3 b/ F- m- F (2) while <condition> loop
9 g) x! m1 T% ~$ r <statement sequence1>;
8 K2 x. Q, G5 b- p+ P; X% a( X end;# u) t% `$ s8 k3 s
(3) repeat
: l. b+ d3 [( Z4 j <statement sequence1>;
* G+ c z" s6 J until <condition>;6 c' B' X( W9 a
(4) for <condition> to <condition> loop
2 h9 J0 P" [' y& _# P <statement sequence1>;& G& i3 I5 F- ?. ?' m' `
next;7 f9 d \. L) ?1 C9 y9 u
3中断语句2 J! h9 Q+ s7 \# ^) G
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
E, Y# l: e5 f4 r9 F还有很多，如有需要我把资料发到你邮箱里 . ]$ X2 o4 O( \$ f- q# b
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