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发表于 2012-11-13 08:48:12
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1判断语句
5 W! F. @ @% U% s. d. r0 s! \2 g if <condition> then3 H* A; p( k6 k" ~1 T/ o
<statement sequence1>;/ K% c# S' l) r3 K
elseif <condition> then
, K) [$ E9 m3 k# U' \4 ^) ~ <statement sequence2>;
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<statement sequence3>;3 B5 b; V$ N0 H( J
end;4 b8 }. n' X% Z0 W! G
如果分支比较多，用：
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when <constant_list> then! }2 `/ p2 j/ d% ?
<statement sequence1>;
; ^5 V* H' W# Y5 d: }( ?, i0 i when <constant_list> then
8 w6 ^ y- Z* L+ D0 J8 m3 Y <statement sequence2>;
& O' C$ z' U/ \: v c/ f4 B ...
$ a: C0 k- d% q( }2 T/ R else
2 a& O- x+ s+ k/ P, H8 D6 m% L <statement sequence3>;8 ~+ |7 g% J; Y) R
end;, r! L" f1 f7 I; {5 [
8 R6 \2 w+ \8 w2 K2循环语句
; p9 V, y, x$ P& ] (1) from <statement sequence1>7 c. J( E |9 D, K! l
until <condition> loop
, b; Q7 ]( K% q <statement sequence2>;
0 H6 { {$ T. D" D t end;
) ^: R% } s0 [" a0 D6 J( O$ u (2) while <condition> loop4 _2 R; T) M2 n$ M: @
<statement sequence1>;0 ^9 _9 e! c/ C% K7 Z9 N
end;
. M( m! T# `# Q) U4 b$ p (3) repeat
" c! J. ]1 d9 x! y2 B <statement sequence1>;) V- F3 c( \6 h' s
until <condition>;
: T- [( z/ Z% C) T (4) for <condition> to <condition> loop0 a2 _) W5 k: r# V
<statement sequence1>;
/ p1 h' J1 [& @ next;& T% h5 c& Q `6 c8 \/ g8 _! B
3中断语句3 I) I3 ^( ~; D8 J5 [) n, s
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 R9 L8 z q5 g6 |) b1 h
还有很多，如有需要我把资料发到你邮箱里
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