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发表于 2012-11-13 08:48:12
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1判断语句
- Z7 t% H6 u2 z6 ^& } if <condition> then
( F6 V4 q# ^ }* Z" y' C <statement sequence1>;
; g" y* F( n/ a: B2 b# i& q elseif <condition> then
" W7 w" u/ D' O# q I; T <statement sequence2>;
0 ]/ T" Q# O# D& p else & }* {! K; N' D/ w8 V
<statement sequence3>;
% x6 a% n2 h& Q6 }/ {; k( M end;
' A5 Y0 @. W N5 [2 {( I/ y如果分支比较多,用:
$ r# ?: B% y( p8 g' }6 t inspect <expression>+ `) M7 m4 ^( n+ A) F7 k8 M
when <constant_list> then# U* j( `6 s3 g- i% h! I4 o4 @- c+ k
<statement sequence1>;
1 q6 X @6 z* k b1 b# Z: r" G when <constant_list> then+ Z" M* j" H: @ `
<statement sequence2>;% c; Y% C: [% _4 U. `. p1 {: e
...9 \* T. p& e2 m0 P. G, N4 S& j
else. ~4 x. m9 a/ _$ k! u6 s
<statement sequence3>;
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! K* a- i( k3 a% J2循环语句
9 s( C7 X7 l4 w' A (1) from <statement sequence1>
! O9 ]; F" ^+ U! ^ until <condition> loop. Z8 \% N2 n0 W6 G3 u t
<statement sequence2>;
8 y( L/ H/ |1 U2 f I$ M1 i end;
4 E4 ?- j# b6 {* b# v. W (2) while <condition> loop
7 c @9 U% t# H1 b6 A% a+ l <statement sequence1>;& H, X# P3 @' }" x% t# h9 C
end;' w; R: C Z5 X7 a
(3) repeat
2 Q8 R# _- p/ Z# B& A% {3 U <statement sequence1>;
5 @% F5 B) S2 c0 q- Y8 A7 g until <condition>;' ?7 f7 x, a; J3 i4 o' w ^' x1 \
(4) for <condition> to <condition> loop
4 y5 l6 V! m! H6 Y" M2 J; M <statement sequence1>;4 O' k c6 J( \8 M* w0 G
next;) j1 _ Q( u$ Z9 E8 a) f; I/ W
3中断语句' h9 H0 j! c7 T$ M% K. [: r
waituntil <condition> prio <integer expression>;! e8 X+ U, F) l( `% f2 V/ n" u9 K+ v7 z
% M7 S) d; l! w8 \
# H \6 I( s! p以上为常用的函数!8 A. t2 ]+ h; p; Q- v
还有很多,如有需要我把资料发到你邮箱里
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