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发表于 2012-11-13 08:48:12
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1判断语句
" t$ u; D g: K' h; S4 V if <condition> then3 Z+ A7 p5 Z. p7 h V
<statement sequence1>;* r! X9 W: H6 f
elseif <condition> then4 U6 e9 s x6 n0 ]! T7 r6 P+ ?
<statement sequence2>;. e- o L/ ` Z$ M
else
" `- W8 }) |; K7 h( A# \# Q9 r <statement sequence3>;
' v5 d8 ~1 I$ `- O0 {7 v end;
( z/ X* Z4 y* R如果分支比较多，用：
5 i9 F$ w! S/ ?8 n. X& B9 p inspect <expression>* j5 m% v9 E+ H" ?- o
when <constant_list> then
3 V' W/ \1 @5 w& a: [$ X <statement sequence1>;, U' e* {1 W5 c5 T, }% y$ M
when <constant_list> then
* W/ i& S) r" L q( w6 u4 |1 c+ S( R$ _ <statement sequence2>;0 @3 R$ m2 W" |
...9 X) O% H2 A( N: e
else
/ n" }" U) U4 ^& F4 L( T9 V4 f <statement sequence3>;0 }: t; m; c1 B; c8 |% ~7 d/ Z; u
end;
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& |' l8 d2 x& t% y( Q2循环语句) H. k+ U, ^( r8 x
(1) from <statement sequence1>
# a, B* f( `3 ]' g until <condition> loop
/ {# O$ M3 {' g, X <statement sequence2>;$ Y$ _! h6 N0 K+ I; K% w
end;! f; D5 v0 k2 K1 y1 Y7 ]' i
(2) while <condition> loop
( [8 }- P3 _5 w6 k <statement sequence1>;2 V! |) D; Q) |, Q4 D( _# W
end;( P9 Z" u) @4 |1 c( v$ p
(3) repeat
6 {8 i: e1 W8 Y8 X* ]5 M: Z6 _- y <statement sequence1>;4 o( j3 ^, b. S/ h; S) T; ?
until <condition>;
5 i( q2 U8 x. }2 j+ S1 ]( P* m (4) for <condition> to <condition> loop: c# w: e# o( b# u" k3 E
<statement sequence1>;
) D4 f( y/ L0 f1 H next;# ^0 F! l- B3 ^- d7 l5 [7 w; L
3中断语句
5 f; v3 [, @8 R; T+ X& e5 r waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 J( _/ ~+ O/ b6 w. c' q7 w0 ?
还有很多，如有需要我把资料发到你邮箱里 , ]8 K; n! c. Y( A# p' `. `
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