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发表于 2012-11-13 08:48:12
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1判断语句
7 q6 }6 F/ A( m3 i0 A# u7 K if <condition> then" p# @/ u+ C7 O' S0 ~- z
<statement sequence1>;
) E6 H2 b! c! S/ P% P0 S3 c elseif <condition> then
+ Z# b( S9 M/ _& b# h7 `1 _5 F <statement sequence2>;
/ z3 u- h4 a3 L, L' \! I9 W8 ? else 3 O& v, _$ c+ ~& E p" e0 w
<statement sequence3>;
4 k1 ]% a* `( ]2 t# u) q& E end;
* l" T* U2 a6 W2 A如果分支比较多，用：2 `5 Z; H% x: B8 Y
inspect <expression>: ?& L1 `) J6 n; _
when <constant_list> then" K. `6 j# K! x! U b0 ^$ b
<statement sequence1>;
5 r* x; i0 e3 f. U$ J when <constant_list> then2 D: w) L3 _* Z* u! U/ g: p0 [. u
<statement sequence2>;% J- V D7 S! u* }0 S$ \
...
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<statement sequence3>;5 d* B4 ?* [ v* k0 T% d+ G
end;/ e* x4 t7 ~5 G2 V
& N% x! A* W ]* G1 }2循环语句
" H6 v0 D, M. @' k: U4 G q+ P/ D (1) from <statement sequence1>4 K8 M* L7 [& a" D# m
until <condition> loop& D' }' F5 d7 f
<statement sequence2>;
& M- k* ?' \+ E3 S. G) s( N. f' l2 ]. ~7 i end;: ~1 B5 U. N$ I) w* ^# q
(2) while <condition> loop4 n$ V3 R h+ Q9 g4 ^5 k/ i6 x
<statement sequence1>;1 h9 S' Z4 H- A/ l, ]
end;
8 e( [# p- N+ u7 J* l+ U! W (3) repeat
1 l1 S6 m* a6 a; R <statement sequence1>;
_# W- E! q( O& ?3 ?+ U& y until <condition>;
& b! y1 O b. \" K; s (4) for <condition> to <condition> loop: r# Y: N8 \: u$ A
<statement sequence1>;
3 W' R( q) a6 ~. R1 S. M; Z8 _0 W next;
7 K1 F& _% N8 J+ a+ M; G3中断语句4 n0 P! t) |4 N1 w7 A! g% x
waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ Z4 i/ r& i- h' Q7 S8 m! c, C. f
还有很多，如有需要我把资料发到你邮箱里 ( Q6 w' D L" d, @
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