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发表于 2012-11-13 08:48:12
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1判断语句8 \7 ~. n& d& ^' l/ e- @( K
if <condition> then2 ~0 @! O/ z/ w( q' {
<statement sequence1>;& {$ b/ {+ t; c" r8 Q& Q
elseif <condition> then8 y* S+ y. [+ y* @ c, B, h$ v$ S
<statement sequence2>;
+ \# l& @# H. F else
/ f% J! D( } e/ ` <statement sequence3>;# ]' X) W5 z# s* Q" n' b# {0 P+ v
end;# m2 ~- J9 O8 ]& `% Z* I- L! d
如果分支比较多，用：
" [+ M9 g1 Y8 ?6 W& P inspect <expression>
w. J2 R: B! N5 s when <constant_list> then
# Z+ X! n; z3 d; V9 | <statement sequence1>;
5 N* V( [% D% m: i2 D" E. M& r& d- Z when <constant_list> then
/ Y9 j o7 h9 _) A <statement sequence2>;
3 d, T# i. _( L6 Y8 G: W ...
- L" ^# P/ q8 {9 J1 i- s7 v0 p else
3 h- N, U. K- N( s- S2 w: a <statement sequence3>;
% x0 c: F u/ Q& Eend;
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( R7 V( B; ?# X: O) |- z L( }- r$ D2循环语句4 j# [/ o/ u" Q! q, T1 J
(1) from <statement sequence1>* C6 {7 j2 N. i8 X. m
until <condition> loop
5 j" C3 \& u* R0 P6 G0 q <statement sequence2>;! s9 r- U, F" l
end;0 P5 ^0 Y' I9 u
(2) while <condition> loop; z; X- Q A" d: c: Y3 x
<statement sequence1>;; O# G7 J1 O7 R& d7 ]+ j6 F0 F
end;- ]2 ]+ r3 _3 g. G2 K9 @ F' t
(3) repeat 2 {( ]$ ~+ S7 e; y) ]. m
<statement sequence1>;
' V' A! s6 U/ v- f until <condition>;
) E" ~; O* i7 b. L (4) for <condition> to <condition> loop
' ]: Z! }) K0 U+ F <statement sequence1>;9 \& D1 k% b5 A
next;
! [: z/ |3 X2 ^1 o8 ^2 M3中断语句: o# z4 m; u7 p2 A ]
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 ?5 e6 |* S) e8 g4 u/ }+ k
还有很多，如有需要我把资料发到你邮箱里 ) b- G0 k! s1 D5 q" q
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