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发表于 2012-11-13 08:48:12
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1判断语句* D4 _0 b6 l1 ]! l( B7 n4 w" y
if <condition> then, l9 \) P9 o* f" u1 P! c ?
<statement sequence1>;3 c5 m5 _2 e$ q' I
elseif <condition> then
. v/ ?; v+ q' @# _- T1 L <statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:# S+ E& `5 j: P$ o7 P4 s
inspect <expression>
5 x3 N& |0 M7 p& Y/ n when <constant_list> then" o, W! k f+ X" W
<statement sequence1>;7 |7 q- G' f4 H/ c; \
when <constant_list> then
1 B% m& T4 S4 q <statement sequence2>;
! B2 b8 e9 [' f D9 p, t! u, O ...
4 _1 l; X. H( B1 i/ s else
" E2 Q. ]# h/ l0 E% v2 K7 D <statement sequence3>;
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2循环语句; d# i, Z }+ F# l
(1) from <statement sequence1>$ A3 O3 \3 x/ {8 N+ K9 j
until <condition> loop R% B0 n5 h) a" E
<statement sequence2>;
% }* Q9 o" b# @( `# B/ A1 ] end;
' G8 [* g% v( ]$ D& } (2) while <condition> loop
9 U# M% e0 i2 b' K" _) l* L <statement sequence1>;
, `) k. a- T$ {0 }# u: r9 b end;% c( T$ J7 g2 y8 e5 S. q p0 I0 s
(3) repeat 6 o& `- r0 I: S N& ]% q
<statement sequence1>;3 s( V8 U% c: m* Q5 G0 ~3 Y
until <condition>;
" t% \2 B# U: i/ F* {& R (4) for <condition> to <condition> loop
' z U) z' b8 M) m <statement sequence1>;. b- D( @' B; V$ \% t
next;- a. r- R4 x, s. @
3中断语句
7 L2 }8 {/ t3 h8 O waituntil <condition> prio <integer expression>;
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0 i# _. @/ j0 g! t6 M# t$ R以上为常用的函数!; |$ \9 i. W7 P' w! x1 J
还有很多,如有需要我把资料发到你邮箱里
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