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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;2 b* v/ U: l5 M- n% z% M, i; C' L' T
elseif <condition> then, C/ ] F; c# y8 F
<statement sequence2>;, q* d. n: x. i. |$ V4 Y
else " Z2 A- T: q# [& p; `7 i; U
<statement sequence3>;
1 v" l; f- z) ^, q# h: x end;
& ]! w$ t$ a3 p& h' v) F" n2 b: W如果分支比较多，用：
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when <constant_list> then
; }& g* }- T: B% B" [: m* L0 N <statement sequence1>;
+ Q2 C% T! w# [* i4 A8 Z6 T. | when <constant_list> then% N* \! o& c+ r( L+ |
<statement sequence2>;
: c& T( w0 E8 I$ p( U9 ` M ...
0 a0 G% ]1 `4 L5 ]0 p6 [: a else
& @# ~4 Q6 `0 @& D/ B; O. a <statement sequence3>;- Q5 @# ?+ G6 K" z, j
end;
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2 { h; [2 W/ Z7 k* C" G3 I2 s2循环语句
0 [ a' E/ ?0 z% W6 U: \ (1) from <statement sequence1>
0 \% p; w, @# J, f' Q# B' Q until <condition> loop
9 r- ^0 f1 O3 S' j <statement sequence2>;
; j; ~0 Q3 `4 d. A8 `0 J* K, f end;
- q9 d7 g1 U0 I; p; ? (2) while <condition> loop; [( P6 e9 O- H2 f8 C3 _
<statement sequence1>;- }, c) v8 ~ C/ i" X; j8 v
end;
/ q' L) z& r3 R) q1 S (3) repeat
% b. U9 ?5 e+ x# A) E* ?8 I R <statement sequence1>;; ^5 F; ?: g4 O7 H( x$ N
until <condition>;
2 b8 U, g" }$ F# i- h (4) for <condition> to <condition> loop
+ l+ K# l! E( Q/ i( ^& R, v3 L# {1 g <statement sequence1>;8 }( B% r/ ?7 o* y4 \% T
next;
" w7 I/ i, r; s6 f4 U" L; a, ^3中断语句4 D: {* c* V: Q2 e* O
waituntil <condition> prio <integer expression>;8 I: _$ A& |% ?, [# N
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) Y3 X; ^' J6 y以上为常用的函数！
+ n7 s$ V6 r. N6 j3 I还有很多，如有需要我把资料发到你邮箱里
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