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发表于 2012-11-13 08:48:12
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1判断语句% I: ^ k0 { x/ {- j4 ?
if <condition> then0 \0 d3 X+ z$ K; t
<statement sequence1>;- `7 `' y0 z3 m6 F6 Q
elseif <condition> then
5 z. m# y3 q4 K3 ?' p2 } <statement sequence2>;
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<statement sequence3>;
* F& B3 z: o, z/ ?0 q end;
6 h% Y$ p! p- U% e0 E$ L" \如果分支比较多，用：
3 u% _; [9 ~0 o2 v inspect <expression>
9 Z/ B3 e$ U9 \' G x: Z when <constant_list> then: `9 b- n7 W4 J/ ^5 i0 B' _
<statement sequence1>;
; m$ C7 v2 F0 j/ {& Q3 b when <constant_list> then
! f$ Z& ]9 J# L# f2 S6 d: Z* Z <statement sequence2>;& L; R4 M& I6 t3 x' c
...; e0 Q* H( g8 I$ z. | \4 y
else8 a8 U5 c2 D( {) H R) d j/ L7 u
<statement sequence3>;
$ O- U$ L! k1 A1 t/ H) rend;
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% B( `& Q; @0 P: m. R$ ?9 ?8 V2循环语句" p* i& c% K' t2 r. v( a
(1) from <statement sequence1>: B Y% u3 Q( E
until <condition> loop9 F) p3 F W1 x' d0 w
<statement sequence2>;5 x" {: ?& j; Y8 |) T+ W
end;5 c5 D7 G( Y7 m% p4 q! q8 v
(2) while <condition> loop
7 _1 n" v+ Z( w <statement sequence1>;; ~" M; ^* `1 C( p L g3 l6 t6 E
end;
: |. t- F0 J: W% A4 ^( A (3) repeat
! l$ X: \$ u! U( M O <statement sequence1>;- w5 b; X0 ?/ c3 C. |+ H
until <condition>;
6 v/ y* ^4 p/ w p( {7 z8 ]+ Y (4) for <condition> to <condition> loop
, p. ^) p: c# l" G <statement sequence1>;
: }2 Z! d9 @: r% c! W! N2 J4 F, ~ next;; m6 B- } G2 [5 C
3中断语句# ]9 W6 d) t3 `4 H
waituntil <condition> prio <integer expression>;; S& e' z4 @! e4 |
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以上为常用的函数！. a* T0 p2 \5 `) s! L1 w0 A& W
还有很多，如有需要我把资料发到你邮箱里 . o' d0 {/ z3 w* Q/ `
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