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发表于 2012-11-13 08:48:12
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1判断语句7 w& j! B* U, {1 Q
if <condition> then1 T9 C% d2 [; A5 a
<statement sequence1>;
7 u: Q4 T% ], s. K6 c& O elseif <condition> then# u/ z, x6 y1 m1 t- [
<statement sequence2>;/ o3 Y. `2 h9 h8 C
else 9 _' r+ f! s7 F
<statement sequence3>;: S5 r9 h- t# ]( Q6 E5 _
end;6 h% j, {2 |8 n( d" T6 M; J; C+ Q
如果分支比较多，用：
7 k" f8 R! W& h. U" y" Q; H inspect <expression>
/ o& t4 c. m; E& a, r when <constant_list> then" ^2 O5 ?1 y+ C r; x
<statement sequence1>;( K- ]2 N1 ?$ i7 @4 S
when <constant_list> then
; w3 z) A/ V |, u$ u2 T' K8 @ <statement sequence2>;0 ?- y7 `2 n4 y2 i4 z
...
0 S# J4 c+ q, u else
|/ V/ W j0 e; f! x <statement sequence3>;
O# K6 U1 R; Nend;
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5 A0 G' k% n* ^5 [6 ~/ s2循环语句
- g5 D+ B) g8 K) H0 s (1) from <statement sequence1>
' y3 _/ |6 Q! u3 J until <condition> loop
3 R. P, u3 R: Z+ _9 d# c <statement sequence2>;; s# L+ x/ i4 d, a
end;
; H& t! `+ T4 [0 w/ M (2) while <condition> loop+ S* Z, Z7 A2 w) y( [3 a' {) \
<statement sequence1>;% r7 f; Y) O1 g/ C
end;
/ ~6 b. b# t Y' w (3) repeat
0 G* ~; t' t$ M- b7 {& ` <statement sequence1>;
- M4 e; t; \ W% r7 r# A until <condition>;. r% l1 j* \; V: d6 w, N
(4) for <condition> to <condition> loop
+ i3 J8 X/ M ~ f1 [1 { <statement sequence1>;
! d/ g' b2 y3 Q t4 E% ^& n0 p/ d next;2 ]. f7 N% A' B% ` s! O2 B' W
3中断语句% {: g: {# ~6 d2 E- |5 \% N* h. A+ Q
waituntil <condition> prio <integer expression>;) K" x2 ^* x$ T
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X( P/ J! U7 t+ |0 g' b9 D: I" V以上为常用的函数！ N& M) Q% H4 W2 P& }9 X3 O
还有很多，如有需要我把资料发到你邮箱里
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