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发表于 2012-11-13 08:48:12
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1判断语句
3 a7 H1 E2 X' Z+ h2 A9 r if <condition> then
, B0 f/ v3 X7 g7 v3 `& V; I <statement sequence1>;
: g# ]% b3 U: X/ o. K9 R' O. }( g1 k elseif <condition> then
: I$ ^: j& f# R) p! k8 A <statement sequence2>;
2 h4 p% ~& L: P- S* }3 o& g else # e) A& h- d$ ^% s
<statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then
8 ^5 S: e/ P7 h( C9 R6 r; j <statement sequence1>;
m2 w8 w, M) J. S5 K* f when <constant_list> then
6 }2 Q) }' x8 d <statement sequence2>;& @* t: d0 G+ k7 X. @
...
4 h! i, P( Q4 F else
) z$ j+ ~/ X! _ ]1 {3 O. T' a* L8 B <statement sequence3>;% j1 W) e' H# B; ], I
end;! [. D7 y' ]9 S% K1 D
) p0 l5 J4 N2 K5 Y' R- d2循环语句
/ w4 d% E5 Z' `, N. a! Z6 o" a (1) from <statement sequence1>% v- k, D7 Y; z6 C& Q. @
until <condition> loop7 X" A& M+ V# w* |
<statement sequence2>;
9 h' }% {7 B. Z m t% j% L" r end;
) ` r# F! B9 l' F (2) while <condition> loop
: V3 K1 |0 e! H: z! m& a: v9 f <statement sequence1>;
7 m( [( R# r# G( s* u end;
8 K! `5 ?1 {* B0 u/ ]! X* h6 D- X (3) repeat
0 c$ I6 J5 m9 {2 c- s <statement sequence1>;
: D5 G& v) v8 f0 X$ p until <condition>;* W: z6 ]* f3 `. w7 N
(4) for <condition> to <condition> loop! b2 H6 ?* ?/ r: ` C" \
<statement sequence1>;
w/ K, }. j8 d3 l' x# ?) c4 y next;
) e9 h4 n% a+ ?& M$ q8 B3中断语句
$ \; z; c- ]) I, d8 ?0 B4 A1 {# ^ waituntil <condition> prio <integer expression>;0 q4 Z9 [3 o( G, h4 _6 u# ?
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0 \, d" i0 w! M$ V% X; k以上为常用的函数！
' e+ N$ M8 W ^( f' o4 v: l还有很多，如有需要我把资料发到你邮箱里
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