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发表于 2012-11-13 08:48:12
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1判断语句8 J% }" i& h9 B* n |. p8 l
if <condition> then/ ?( W% }* [5 y' }" G) g4 ^
<statement sequence1>;
# q* j! L9 V1 Y5 i. t+ ] elseif <condition> then- Y# r' D" Q/ o; Y& \# u
<statement sequence2>;. g# @- s0 K2 U6 L
else
" X' M0 i* H" T& k <statement sequence3>;8 F( n( Q$ e' R# g4 ]8 G4 X5 [
end;1 a$ A+ L; D) o+ p- W- M0 Y
如果分支比较多，用：
9 O) [. ^3 F$ e5 c& U1 F inspect <expression>0 d1 S) c2 |% I4 V8 o
when <constant_list> then
: N; a0 R( Q) D/ Q6 M <statement sequence1>;9 ]+ h# Y7 W6 c/ ~( N! J
when <constant_list> then: C6 ~$ H5 o4 o! T9 q, o$ L9 ^
<statement sequence2>;
# k7 ?) ?; W6 L! L% Z ...
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<statement sequence3>;
- t0 s. n0 [( U- h" i3 xend;& }7 e: g/ X' }
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2循环语句
; T1 L# e8 F* j2 R" z5 \& E# w (1) from <statement sequence1>3 i8 O5 B% p& u( D" Y2 M
until <condition> loop
( G; q+ J E6 i/ Z <statement sequence2>;
' q2 B N9 z5 p# e end;; o( j- j) P# M' Y
(2) while <condition> loop6 M2 f- A, q. X! k7 D G9 s
<statement sequence1>;9 [3 x% g7 X( B: a
end;
" H; O8 N4 W2 E (3) repeat + |$ e t' ?! n7 D
<statement sequence1>;) {% w$ u- F3 n, {" b
until <condition>;
! [: q2 A w: V, e4 {- ^ (4) for <condition> to <condition> loop
. ^% ~: w' l5 {* Z9 V" m, G" o <statement sequence1>;
; j# x$ r; _0 U next;5 Q. z: I2 D0 L
3中断语句
9 q; y }& Z+ z |( \ y# A waituntil <condition> prio <integer expression>;( j7 `/ J T/ g2 m8 _% u
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以上为常用的函数！
% k% R9 A2 | {, Y+ Q! I6 I y还有很多，如有需要我把资料发到你邮箱里 ' Z/ X' W: }9 p% i/ p
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