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发表于 2012-11-13 08:48:12
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1判断语句
$ U8 Q6 G7 x! k# S1 X if <condition> then& ^8 J8 J6 V& E% N% S+ t
<statement sequence1>;- s! q) a! r, B2 g# X2 ]# \
elseif <condition> then
- q0 ~, T9 e, ^( X9 o <statement sequence2>;
2 o* @4 }# H4 k" I+ N# W: M: e else % d/ h- X; V6 |! `0 ]/ H
<statement sequence3>;
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如果分支比较多，用：# n# P" a5 S5 a5 L4 H/ [
inspect <expression>
4 s/ T( O: q3 i" Q; y when <constant_list> then
* G: Z) t5 M6 o <statement sequence1>;
5 ^3 D" p8 ?) y+ f; V when <constant_list> then+ U5 c' t9 N0 g# b
<statement sequence2>;
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else; I0 p, `, O3 m! F: i: M
<statement sequence3>;/ D* A x4 i2 }& b! e- x
end; D4 ?" m2 D0 z, x0 q% U' D
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2循环语句! W: k$ \0 x" a$ O
(1) from <statement sequence1>6 N- \- d0 W4 [2 |. M, d
until <condition> loop
& z: R6 w8 a. d% z, m+ M0 G; P <statement sequence2>;
- w- v2 Y, t. e end;" `8 j; \ B- w: n
(2) while <condition> loop# W2 ~# K/ u( L1 B3 g" u
<statement sequence1>;
4 l! D- x8 Q$ b9 g end;
! ]; E5 E! Z0 q (3) repeat - o7 O4 h+ M6 H* I; I, U4 ^
<statement sequence1>;" s, X4 w/ C* b! t& @
until <condition>;
# P$ ~* ^, d+ D5 n, p (4) for <condition> to <condition> loop1 p! {: h$ x: |
<statement sequence1>;
" z3 B6 H' Z. E% R1 k& [( E- m next;
2 A5 U. H. x$ i6 R0 B% i0 N1 H3中断语句9 }: e6 l N! u7 ?& z- ~+ U2 g
waituntil <condition> prio <integer expression>;: }. m' A: p: J7 Z7 B, I) S' Q
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+ `4 r- \" h) N$ e以上为常用的函数！
% E! S! o) J! J% n还有很多，如有需要我把资料发到你邮箱里
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