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发表于 2012-11-13 08:48:12
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1判断语句' d( I' v! ` I8 N) u
if <condition> then
0 h' U6 e, j8 K- {1 O7 ?. H <statement sequence1>;: q. t# Z" w8 S
elseif <condition> then, k) W% m6 D: l+ p
<statement sequence2>;
0 d' }8 I( P, Z2 w; L* z) i else ' @- A! ^0 D& b" t/ D" O. `3 [/ ?
<statement sequence3>;% f! x) y# I- i% T- m0 j" ?7 E/ v
end;$ J- \8 ]. e- U3 x+ c9 ^
如果分支比较多，用：5 H4 a! r. K i1 a9 T! m
inspect <expression>
5 M* C5 \: {5 f% a. j) l. m when <constant_list> then+ C+ [9 ?1 p) x2 E
<statement sequence1>;
: D" O" E) R: O7 h1 k when <constant_list> then
6 M: w# U/ w$ x. N/ j3 O <statement sequence2>;& N7 q: o f! `8 _6 {
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else$ I! j/ Y. \. o$ b9 ?- ?
<statement sequence3>;
* Y. }) N4 x: l& J* Rend;8 j( s1 H) Q! q; i; y. _
`/ I; J) y9 d; P, e5 S# P/ x* {2 p2循环语句
! d# ? h& z, X) X9 W) h (1) from <statement sequence1>
# v2 n3 p2 Q1 r. q8 z3 j8 n until <condition> loop3 p! b& u( x6 ]* q# O. n
<statement sequence2>;2 O$ ~; F8 ?& v" r' R0 I
end;4 z/ x4 Y: h) S5 ]; @0 [: h, h
(2) while <condition> loop
, Z( ?3 L0 l1 M0 A5 W( T9 v- B <statement sequence1>;
2 k r7 \3 e2 t2 N# d end;9 r' V( O- @# b+ a
(3) repeat
$ {+ \ d# d) {+ h. y% q0 Z* ] <statement sequence1>;- Y3 @+ {7 F) i
until <condition>;+ w) b* R# e5 n7 n! X5 c( o
(4) for <condition> to <condition> loop
" y9 b, c8 A$ y3 D5 g' G# z* d k <statement sequence1>;
3 [8 R8 N: w7 ? next;: ]0 V3 @" t! G9 e- H% l
3中断语句
" D/ M7 d R9 C$ u+ P* i; I waituntil <condition> prio <integer expression>;6 O" U5 z3 N/ {# Q. o- N
+ x8 E/ ?% q9 v, x
! z \; E. b! [! L以上为常用的函数！
' o7 X" w' z% A) C* c) H$ q2 S还有很多，如有需要我把资料发到你邮箱里
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