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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
) L R. |' L) K4 _ if <condition> then: Y1 X0 i& V% y7 Q9 a# |/ p
<statement sequence1>;
1 Q* w' j# y0 D' K, R elseif <condition> then/ F* F M3 p4 V% b
<statement sequence2>;, S3 B% A8 M: @* E+ x
else
# ] P% U! B: c5 F3 E5 h3 y- c <statement sequence3>;5 r; Q! f0 H; a
end;
" E& H0 c" G4 Q% g" Q" Q如果分支比较多，用：
% T& [2 a" b3 C; ~6 H inspect <expression>4 p0 W7 ~! R* Y$ L8 d$ a7 C9 F& N
when <constant_list> then
1 E# g1 P* b- L3 P <statement sequence1>;" F6 m; A {" g9 {
when <constant_list> then' G3 q# |' \. z/ p7 o7 H* y
<statement sequence2>;
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else- v( m, a; c8 e0 e0 w( P& r
<statement sequence3>;# w: ]" ~: h7 ]/ y! h6 V" y7 ?
end;
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2循环语句2 U" \1 q% K5 ~% q) L: P1 \
(1) from <statement sequence1>
! A L" E2 ~. ~" y$ y0 o( d0 s until <condition> loop
* @! A5 f: h$ Q6 F <statement sequence2>;# D; L! a1 ?' `! M( Y5 `1 B
end;
5 ?6 S0 N( r. J& ]" B d- T. B (2) while <condition> loop
% }; ^9 C7 P$ ?4 | <statement sequence1>;8 F& e4 }- ~+ {: b6 i! A6 X
end;5 H( @: L4 @4 S% T' s, ^% e, T, J
(3) repeat
3 S' U1 C/ r0 J <statement sequence1>;( G; i- n) p% L
until <condition>;* o6 u" ^) A* }, m- S7 o0 L
(4) for <condition> to <condition> loop
3 W J1 m* v3 s4 p/ u <statement sequence1>;; e0 f: x9 ?- S5 n3 A8 K$ c' O. J- s
next;5 x M3 ]8 D. L, S- o2 ^) \' M+ |
3中断语句
7 R) i9 J* i7 H0 H waituntil <condition> prio <integer expression>;, ^7 B3 _& m3 g% M
p' w5 S" {3 ~0 B8 C5 b! s3 K: S! H% Q
8 ^1 N/ H% d3 w以上为常用的函数！* Z* U/ h" q0 ], M g3 a
还有很多，如有需要我把资料发到你邮箱里
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