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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8 w( L+ s1 t4 d; S
if <condition> then" T8 z6 e1 j6 M6 ^! `; E! e9 W
<statement sequence1>;
3 P9 O, N3 F, I4 O3 H1 ^ elseif <condition> then$ M' \. H+ u3 M8 J5 P0 w
<statement sequence2>;
) |$ j: V+ ^4 b/ L0 n. ? else
8 \& I5 Q% L$ V, H <statement sequence3>;
3 y4 L; Z7 h9 e end;
1 J2 f1 f+ U0 U2 p如果分支比较多,用:5 O1 t; h/ d6 A3 _# p" C
inspect <expression>8 X) n7 ] N2 g0 o% j+ A
when <constant_list> then
) g) i1 T3 ^' U1 i <statement sequence1>;" L) w: {# Q" A+ u Z+ b, ~" @! ]6 o
when <constant_list> then
8 p# P( K% N7 O1 e3 [* a2 D$ k <statement sequence2>;: F, L+ l: t5 s1 c1 C
...
6 W9 V; c% G5 S& D* O5 d& j( ~ else
/ B/ r; h: t# M5 t% C5 m <statement sequence3>;
' x$ y2 c/ H+ `. g6 Z! iend;
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' H6 M9 f: v" }2循环语句
- o3 C* @9 ]- M/ V (1) from <statement sequence1>$ G" \- q" k( S. m
until <condition> loop
/ {4 d7 h2 A1 l <statement sequence2>;* w) Q5 Z2 B A2 m$ p" [. f9 _
end;
" V6 a) G) |( x$ q (2) while <condition> loop% V9 R( p$ ^$ `1 I5 P; ]
<statement sequence1>;
4 _& g. x& n2 N end;4 U3 G9 A3 C$ }9 {9 Y! _
(3) repeat # n: {( P, D. n5 ]
<statement sequence1>;/ N" z: s. f' g6 W1 w" P
until <condition>;$ d0 O) t q; A6 o5 p( i8 ]
(4) for <condition> to <condition> loop% q! c! ?' R9 z" g7 x9 F- q% d* M
<statement sequence1>;* W0 a% c! r8 i* e& z
next;$ p5 z& c) I1 J7 z4 b) l1 S
3中断语句
/ S+ e2 C2 S4 T' X( Q waituntil <condition> prio <integer expression>;9 D) h' C) ~* _2 e
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以上为常用的函数!- d3 V7 W5 I- O" f+ F
还有很多,如有需要我把资料发到你邮箱里
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