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发表于 2012-11-13 08:48:12
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1判断语句4 }' \" F7 k. [
if <condition> then
8 M2 g P, [/ u7 u" ~% q3 F" _ <statement sequence1>;0 L8 F9 z v; A: `
elseif <condition> then
( l& ~# H7 |( d8 G8 C% D" a <statement sequence2>;2 n7 ?$ ~, M& v$ B" b1 l$ A
else U4 c& d& R& N
<statement sequence3>;
0 f" X2 h1 \/ [% L! j end;
]* U% J `( y& B& N如果分支比较多，用：
6 f- \) q: Y' T3 X5 G inspect <expression>
4 o+ A: w5 N% v5 U1 e when <constant_list> then" ?; q9 n( }% T% [' [, @
<statement sequence1>;
" K( u0 k$ B r9 U; D when <constant_list> then+ V- A8 y8 F J. t p
<statement sequence2>;0 {, `1 n8 x. c( m7 C
...5 `6 K e0 W. Q+ O& A: s3 T
else
) f s' `2 g; M( S2 U- N <statement sequence3>;- }# ^/ `9 |; ]. R0 g
end;' { K2 \' Y r8 {
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2循环语句
1 A$ f' ?4 s/ j2 q" q( s (1) from <statement sequence1>( A1 e6 ` f6 j3 ^) Z
until <condition> loop
$ @% \4 Z. O: J, ? <statement sequence2>;
) P2 ^% d9 o4 j" z5 _, ^& a8 _ end;
; C- E. {2 x( N% B! Z (2) while <condition> loop
' Q7 a2 G. b* C _5 b <statement sequence1>;
3 U# L& H, ?) V0 m- {2 d- M end;
: K0 L4 B/ d" z8 V* H& P7 n (3) repeat + c( E( Q( r3 L2 D; E6 e7 x& c8 E
<statement sequence1>;
1 Z2 J* b+ l5 r0 c } until <condition>; B7 d7 b. Y: G
(4) for <condition> to <condition> loop. }* C5 N O* c' G
<statement sequence1>;3 Z- e1 `# K5 s7 h5 j( y- N% V
next;
6 G' d- t, f( L6 Y8 { ?# U' q3中断语句- T8 p" \+ h* B6 l" U! w
waituntil <condition> prio <integer expression>;( h" l1 m7 ]: G6 ~
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以上为常用的函数！; D8 p* Q+ q0 b9 [: p
还有很多，如有需要我把资料发到你邮箱里 5 G- `) z8 m: `5 \8 U6 {
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