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发表于 2012-11-13 08:48:12
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1判断语句
# a+ z3 R2 G R L" W if <condition> then3 g* `- {! V, ]: ?
<statement sequence1>;* E* X( N) K: ?& l+ x
elseif <condition> then
; U: U9 Q. v' O3 F <statement sequence2>;
* y3 H2 z' |3 ` else 9 u0 t8 U+ ]" }! ?. q4 `
<statement sequence3>;
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如果分支比较多，用：
" D. q' X6 k M inspect <expression>
?9 s& O7 \/ i( G) L d when <constant_list> then4 y% F7 y0 e: u
<statement sequence1>;
) w" |/ S' c; B when <constant_list> then1 L& c, g# n/ w# |( u9 Y1 V
<statement sequence2>;- V( Z! I# a2 r6 B) y) Q
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else; L5 d/ m9 b3 D( e/ G
<statement sequence3>;. P+ q4 x% b/ c0 o/ G
end;
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7 x% B5 T. \; B8 P5 H l0 n L _2循环语句8 O5 ]+ w; O, l* b: \! @. l* G$ y# o, f
(1) from <statement sequence1>6 s) G* t6 r* E9 S8 H
until <condition> loop4 I7 R+ o" q- b: |( `" c
<statement sequence2>;
" K, h+ V* \: M- w4 z" D end;
; x5 B6 M& J. n' R: I6 _9 Q/ h. u' @ (2) while <condition> loop
* w" C9 ]2 B4 n- ]' { <statement sequence1>;2 b2 V! S& ~! I- Y. [& b! J( o
end;
, ~6 x6 u( e4 m/ [% x (3) repeat
0 D& W" V: X: Z; F) Q X( A <statement sequence1>;
- {2 w6 C, X. l9 J4 [, B until <condition>;
/ W+ e& @2 S2 E" c' c (4) for <condition> to <condition> loop
' C2 {5 m; f B1 U3 D) J7 H <statement sequence1>;4 k) @ L( v3 b% G$ B
next;1 a5 Y3 x( K' m/ u: O
3中断语句" N& x7 L; e1 r. J6 H0 {/ J
waituntil <condition> prio <integer expression>;
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" ~ a# d4 q& {
' U/ e' w0 ^$ m3 x, \( `) R以上为常用的函数！2 ^4 n% ]. S9 \( X: y' V+ p
还有很多，如有需要我把资料发到你邮箱里 : o' l; e) u7 u2 [- S- j
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