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发表于 2012-11-13 08:48:12
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1判断语句
7 k: T. Q* i9 i5 I if <condition> then
/ v* N* z/ z* o- } <statement sequence1>;
1 y* i% K7 X$ o& l- O3 M elseif <condition> then: O) p& }) A# }% x! H% J
<statement sequence2>;. h; d) w+ f4 I6 w, O- [3 q4 q
else ' @7 V2 M6 Z& Q
<statement sequence3>;
9 Y7 \$ _7 W% D6 g' V% V, i/ f) \ end;1 E& \* f, E/ m% C* ]% b: a6 S, Z
如果分支比较多，用：
0 J/ T$ h4 `, } inspect <expression>
- \1 L+ Y1 L5 w4 \. u; l! t when <constant_list> then8 g0 m7 f$ v3 }& s
<statement sequence1>;
; D r# ?9 ?3 g) a when <constant_list> then5 X. _1 x- v5 Q
<statement sequence2>;
0 `; |4 U% q; B: X ...2 v, L% L, X1 s- L* {( v, N) |
else( B7 t. K% b( V9 o" X6 ]# ~% d
<statement sequence3>;
5 a( [$ E, g' Z, _7 s. ~end;
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$ O- S9 r" G; i2循环语句9 h; R% m% k" c( w! P
(1) from <statement sequence1>
; e" p, R y- ]* S2 k6 @% A3 j B until <condition> loop
4 L' x+ M" q3 o% N0 |( G <statement sequence2>;
7 {% D( D* O! i9 I W end;4 |* \- Q0 ~" s. ]
(2) while <condition> loop4 |4 s& G" u1 D" s; E8 r' q4 I6 G
<statement sequence1>;4 j3 W) g' I5 e! x8 I) u
end;, n6 a3 o! E' h' @- I6 g
(3) repeat
. g- n6 M9 q+ q0 l& U9 G" Y6 g <statement sequence1>;
3 | L& M9 f# I; w4 O/ y8 T! S2 n until <condition>;
. p$ p8 ~7 m' c8 ] (4) for <condition> to <condition> loop8 p( u. P0 I) Z- e5 O
<statement sequence1>;, f; d* B: { {' }# J
next;
0 s/ a T1 W; |+ J5 K3中断语句
9 H3 C7 i( u3 L2 u waituntil <condition> prio <integer expression>;, l6 l' K% g" v0 x7 s+ n
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以上为常用的函数！. P+ f& ]# Y- w* h6 a7 e
还有很多，如有需要我把资料发到你邮箱里 9 E; e$ S( W3 l3 f
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