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发表于 2012-11-13 08:48:12
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1判断语句' ?8 o" Y9 `0 C( M, g
if <condition> then
# }9 t$ U6 |+ C1 X: s8 V <statement sequence1>;
9 v" {* [5 j& u7 c" }" Q elseif <condition> then; b9 f9 d7 C! ]3 U- A, h) S0 U
<statement sequence2>;% k( Y( P+ x: S7 @% E0 t
else
2 t. x6 n# ~: O5 c o' e2 x1 T9 { <statement sequence3>;$ T# _& h! m! r1 j) H) K" Z
end;7 ]" L) c! d/ L
如果分支比较多,用:6 ]5 P7 R; `: F3 n7 c! z
inspect <expression>0 I& y2 @* t. W6 N% i6 P" v
when <constant_list> then& v7 C. S9 D* Q
<statement sequence1>;% I1 h3 |/ g2 Y! A8 q
when <constant_list> then- b6 B& x9 l5 ?0 q
<statement sequence2>;6 k6 i" n) M- J$ S0 e: k: I
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else; M d! Y: {0 O! M1 w1 H
<statement sequence3>;
8 z4 \- {/ F: v6 oend;+ ^ B0 Q( W! X- T% H& n
7 W( b' n) ]8 ~) r3 K2循环语句
, r1 M5 _! v8 O (1) from <statement sequence1>7 d) s- k$ U3 [) h7 n; w8 j) j4 }4 u
until <condition> loop8 k0 W4 L, _1 e; o4 A
<statement sequence2>;
+ C; V6 e3 x9 l/ e end;0 U- s0 y' Y9 ^, n) P J. |
(2) while <condition> loop1 ^; W7 }* q4 F: w
<statement sequence1>;
% G, N5 `* X5 w2 r v7 Q end;
- X8 X8 _$ d, y2 L: ?) @ O (3) repeat
; c5 O3 ^' V% }; b <statement sequence1>;
( z( [* S9 ^7 A+ C until <condition>;
9 c0 V5 F ?6 `# i+ A' W5 J (4) for <condition> to <condition> loop# N8 Q [3 t5 d2 o/ D8 u: t4 J
<statement sequence1>;
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3中断语句) @( B; b& {! v# A! w: K7 U
waituntil <condition> prio <integer expression>;
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以上为常用的函数!+ }" a& \$ t3 n: j- o
还有很多,如有需要我把资料发到你邮箱里
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