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发表于 2012-11-13 08:48:12
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1判断语句7 U% M; L/ a. R# u6 I& f
if <condition> then
# Z, M, ~; d; L <statement sequence1>;" O9 ]% {% Y$ d% C5 U6 F
elseif <condition> then; y, b8 B( V2 Y8 I5 n- N
<statement sequence2>;
$ C1 S6 q1 }, o+ ~6 T! S else # V0 c0 n: i7 t" k- o( }
<statement sequence3>;7 g' b0 }, {: B8 Q* Z
end;# l7 k) H5 l3 ^$ ]* g) S; S% i, _
如果分支比较多，用：
8 J& k. s) [5 x" [" r0 w: w1 V inspect <expression>6 \" s3 @) m- b
when <constant_list> then8 n# f5 `8 s* j. H
<statement sequence1>;5 \) Y4 x5 t- T5 D! X) O! C2 V
when <constant_list> then& e* `* X7 ^ S# A/ V. |
<statement sequence2>;. C# l$ \% j1 g1 l! i: u" f
...8 K+ m# u, n5 z* K, i4 i) N* `
else
" A: g- `3 X4 Y K* O" w/ o <statement sequence3>;
7 r0 `+ {; [- m% `end;
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, r* @* U6 [3 y4 v J2循环语句. B8 u, e" e& p% P! q3 C9 E
(1) from <statement sequence1>$ }4 C+ L: D! a9 W, b
until <condition> loop2 D' c0 c B% C4 ]
<statement sequence2>;- ], ^7 l7 I/ b* e" \: I
end;
! w% {% q- i0 }0 @1 | (2) while <condition> loop
- J* H- e9 M8 A- J. J <statement sequence1>;
+ L& l, s. k6 o% B5 A6 x end;
/ e8 d* W* z- h& q( u+ T. x( a (3) repeat
8 U, F ?- H) O) M3 T, i. }8 @ <statement sequence1>;
0 e5 o4 J3 T- D- Y until <condition>;9 e/ W$ B; F( w9 h% h& @. c/ A0 ^
(4) for <condition> to <condition> loop f& a+ H; ]5 `2 X
<statement sequence1>;6 {0 c1 U0 {; X% g/ H4 W% P) s- C% l
next;
% M) ]- @# ]9 b7 i) V% \7 d3中断语句
# l& V; b$ i/ D! ~" j |) T! x waituntil <condition> prio <integer expression>; C# T& b! d5 C9 j" k7 w" c7 z- b
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以上为常用的函数！
7 @6 a P P h: Y. k( z1 @还有很多，如有需要我把资料发到你邮箱里
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