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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
% O1 N. H0 J: {9 o! B/ G if <condition> then4 U0 k6 P: j. a1 y% i
<statement sequence1>;0 m: ?4 ~- |4 W9 _
elseif <condition> then2 s2 E- g8 Q, I7 Z9 d l
<statement sequence2>;# u( V0 H- }: w- R' X' w8 {1 ?8 o( [
else
C3 Z0 o+ @6 Y4 L <statement sequence3>;
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如果分支比较多，用：. ^4 h" B: H! a- j
inspect <expression>3 I+ s; ~( A) E% k% H: y& q! W
when <constant_list> then
( Y1 X' {7 P+ Y! `7 c% g* Q3 b <statement sequence1>;3 q. p" v( i B% U0 L" I
when <constant_list> then) D5 Y) ?9 F/ Q$ |" w2 v
<statement sequence2>;
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else' [% y0 A# ?' ?+ _% `$ B
<statement sequence3>;% f8 c5 u7 O R7 p6 Y$ _2 a6 o; A5 M
end;/ g* f* b! ?1 u! Z- F' V
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2循环语句
" L5 Y9 h: c2 R! ? (1) from <statement sequence1>1 }9 y& d! ^+ e1 m- w
until <condition> loop
2 w, F/ ~: ]0 z4 l `0 @ <statement sequence2>;' W: _- M u. D& A6 W: h U7 C; Z
end;
7 o* W M" X# j( ]5 \2 {! P3 s (2) while <condition> loop% ?+ Q: t, k( ~8 ?6 F" M
<statement sequence1>;+ S3 R5 i7 Q9 @$ V
end;( ?+ E4 f4 K: i0 b- m9 @
(3) repeat ! m" Y& J4 U( c, K# N
<statement sequence1>;* A1 m0 L) m9 F9 y4 r! [* B
until <condition>;
* k- E0 g7 D/ }3 a2 q# ~. |: Y- p3 n7 G (4) for <condition> to <condition> loop
3 g' W2 k' i G i9 g s: d <statement sequence1>;
: _3 w2 p3 h$ Y. o7 A3 w4 o next;8 O6 G; k* `6 L& N: p
3中断语句
]3 ~3 g) X3 b4 F( L3 d1 G waituntil <condition> prio <integer expression>;# f6 i6 c9 m/ Y4 k
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1 ?/ u* O! \ H) ?) j4 R以上为常用的函数！
/ `" y9 ^) f- D. V! J) w还有很多，如有需要我把资料发到你邮箱里
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