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发表于 2012-11-13 08:48:12
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1判断语句/ v8 Y; @; ]8 z
if <condition> then
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elseif <condition> then
- {' c( A2 `3 y! \# v0 c3 | <statement sequence2>;
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<statement sequence3>;
7 E* Y4 u% J# W" d" z4 W! l end;
4 ^3 e" m/ W; L$ H# ^如果分支比较多，用：
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when <constant_list> then" B& M) }* J ]
<statement sequence1>;
# R4 ~9 ]$ u4 _/ W when <constant_list> then8 N% m' u% a' `1 a# `8 y+ L
<statement sequence2>;
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else& n5 Q! ~# o* s4 t4 h
<statement sequence3>;6 ?: @4 r D2 ]+ M' [
end;
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2循环语句
& q) [% y7 G% `/ N (1) from <statement sequence1>
$ |* @/ w, j' C, G until <condition> loop3 h+ N8 Q* \% \( p) f
<statement sequence2>;- r# P5 p- a/ D F
end;
! b, ?7 B c5 o; K% X/ F, r! u (2) while <condition> loop
* H7 _# _) W, S <statement sequence1>;& a, A* G! Y0 K4 y( Q0 a$ i5 H% i
end;
8 z6 p! V) D$ l b' Z (3) repeat * W6 B& H a5 m( _% y8 m2 m; Z
<statement sequence1>;' I6 S" R) V; V, j E8 O9 O
until <condition>;0 @7 n5 K# M9 f
(4) for <condition> to <condition> loop M H" w2 o* Z! j& [: c$ ?5 S
<statement sequence1>;
& A; q" h9 W O( N* i6 d next;; K. b: U8 T2 j. R
3中断语句1 n! w9 g' j: o# U5 \
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
: z! N# t* y" ?4 J$ D( Q还有很多，如有需要我把资料发到你邮箱里
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