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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
- q5 d" S! a/ @- m* m if <condition> then
" W, Z* h- W( n! a- ~& T <statement sequence1>;9 X* @" N r* T1 H3 s+ a1 i
elseif <condition> then4 d+ M6 ~4 h2 f
<statement sequence2>;! W" u5 A6 G) {; z/ ^
else . o: U7 B s" \1 m
<statement sequence3>;% E! O+ c* p& h
end;0 Y3 {) v2 D! H: ~4 _
如果分支比较多，用：' ^3 X/ A4 f6 J" e" r
inspect <expression>6 H8 h9 n4 @$ [! m4 p$ b
when <constant_list> then
! K: U# ?) I5 o( A, j <statement sequence1>;
9 D; P: r! C) d, t+ y& l when <constant_list> then
! Z5 ~- o7 ?. Y7 z/ u8 g |0 ]3 b3 G2 A <statement sequence2>;
' K" {1 Y3 Q8 \( u ...
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<statement sequence3>;8 s5 E; a- B B% F O7 p- A# [
end;
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+ V# ~# E2 i) `+ }: ]" o4 Y0 L2循环语句
+ v* I$ f7 Z$ ]$ N# ]: Q. Q6 f1 y (1) from <statement sequence1>
. P/ S' N6 e) ~) g2 I. W: | until <condition> loop; e9 q% z8 m# @6 N7 ^6 i* O
<statement sequence2>;
! s: ]- S/ H, a3 t3 _% S( m" _ end;) L0 k$ v+ Q3 g5 i& a! s
(2) while <condition> loop* Y( z6 ?+ [) U2 O1 I4 ^
<statement sequence1>;
! T! ~7 o2 C8 W7 ?( M% k end;
9 W" n. @. q' [$ Q (3) repeat ' U. A% V1 Y4 M
<statement sequence1>;
! @9 ^ R1 d# b1 Y until <condition>;
' Q$ m+ m1 b0 B( c1 X, M (4) for <condition> to <condition> loop
; E7 j0 F/ ` z7 r: F1 a7 `/ W <statement sequence1>;
( Y( @. P" N, }) U7 \; F( c next;: T q3 J2 a3 T3 \, t, a4 q- [+ x `5 Z* v
3中断语句
! C5 K8 Y0 @; {1 h' U5 b2 {5 ~' A: F, J waituntil <condition> prio <integer expression>;6 x% c- ?. S1 v
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以上为常用的函数！2 ^; v( x0 Q" ]3 _% c
还有很多，如有需要我把资料发到你邮箱里
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