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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' {- w1 Q: C Z. A: y6 \2 p+ L% O if <condition> then* y& U5 G& k8 K9 K/ h4 j9 L! b8 D
<statement sequence1>;6 v5 T1 g5 _& p( ^' V- D2 K+ h
elseif <condition> then$ l( B' a) Y) V* R M$ q
<statement sequence2>;
& \3 v! j" F6 S) O( \% G else
5 H0 r1 R+ h9 A. x' g <statement sequence3>; n. b! G# Q! l; H2 ^6 i6 K5 n
end;3 T8 y+ ]+ B8 v9 j
如果分支比较多，用：& R" @1 V/ e3 B* I1 f0 \) M6 d
inspect <expression>
4 F! R/ R% R& ? when <constant_list> then
/ b& g$ k9 Z/ d$ g0 N# \ R <statement sequence1>;
' a2 T6 x1 w3 w( Y. s3 r when <constant_list> then1 y* D" Z; F) R; V0 l: j. W! H
<statement sequence2>;
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else
; p% m" I& p4 P r% o* } <statement sequence3>;, b2 K" M# s' r- A1 X" ?+ |
end;
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2循环语句
, J) |" u0 o; O& u6 _ (1) from <statement sequence1>
6 H, S- O9 o9 j% U until <condition> loop
- Z) z, ^% T. ^# E7 {/ t# m z; a <statement sequence2>;
; \: ?, R: Y+ B0 i3 o end;
5 D" f# |. w3 K$ j& M (2) while <condition> loop8 S+ l/ a7 q- r7 A
<statement sequence1>;0 N, ^) O8 v+ p) Q4 l
end;8 S, F2 |8 @/ K( W; Z3 L
(3) repeat ' ^ I3 |$ b! g, a, ^& r- F; _
<statement sequence1>;
0 W5 P1 }' x. m- a until <condition>;( O: k, n: x) Q: f+ _7 q) O2 m* _
(4) for <condition> to <condition> loop5 O- i, D1 {3 y) ~
<statement sequence1>;( i; m8 h/ \: k% \$ q( h
next;; ^8 o. X" J E+ C5 a
3中断语句
! [3 M5 X4 i$ E% Y% }- M/ ?; P4 R waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 ^* j3 H! h- B' N+ {还有很多，如有需要我把资料发到你邮箱里 * R8 H9 E6 H. @
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