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发表于 2012-11-13 08:48:12
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1判断语句7 m$ O- D0 z+ @6 ]2 N8 E
if <condition> then6 y: c1 C# }* {( S: o" M: ^1 r
<statement sequence1>;+ w9 T! ?/ w* G5 s2 B; P4 J
elseif <condition> then1 N# A# L# ^" X' K L6 x: d9 [
<statement sequence2>;
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<statement sequence3>;0 ?; ~8 r- j. B) C0 A
end;
5 Y6 ?3 s! q, ]" I! H, y如果分支比较多，用：( S% s+ q2 Q0 F0 k' ^% Q5 p
inspect <expression>
# |6 h/ I8 l, t/ U1 U# V5 N0 c when <constant_list> then
5 Q: ?# [7 U( o <statement sequence1>;* T4 W/ l e) u' d
when <constant_list> then5 F. r+ ~+ y1 D
<statement sequence2>;
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<statement sequence3>;: w: U2 z+ i. _+ T" h
end;: P7 ?) [/ B# ?, T& l! a: i
' l1 l1 G$ s. D; k: p( U7 _$ y2循环语句
3 a7 }* v- e& D (1) from <statement sequence1>
& \9 R `4 \. {. b( h( E) Q/ c until <condition> loop: n4 [8 B6 d' y' a4 D- |! m
<statement sequence2>;/ F# X. r6 O1 Y' }3 a i3 G% G
end;
1 }) D7 @ c, M" t' _, W (2) while <condition> loop# G* s. z2 E) o7 X1 z2 E
<statement sequence1>;$ n- |& E0 n7 F8 w
end;
/ r8 U/ m8 Q' i& Z, } (3) repeat
% ~4 w. T1 x0 L6 g, Y <statement sequence1>;0 A4 c5 j; |. X5 F+ k
until <condition>;
( e% b8 \( j U" G (4) for <condition> to <condition> loop
# Z) d V: _$ a <statement sequence1>;8 v) _8 T4 A* ]: t
next;
. g+ @9 v6 U4 n+ T5 z3中断语句" D( r7 o# P- L. z9 M( M
waituntil <condition> prio <integer expression>;! C1 V' ~; h4 Q
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, w- U: w. I+ V z8 m以上为常用的函数！
0 E7 j. {9 a2 ?& z( h0 a4 Y还有很多，如有需要我把资料发到你邮箱里 4 {& u! v; I- q
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