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发表于 2012-11-13 08:48:12
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1判断语句
5 r+ m. I: m) x# i if <condition> then
3 r" u3 z1 r1 X <statement sequence1>;, P1 ?3 j. f2 y& S4 x [ @
elseif <condition> then: \* u I$ q; P7 I
<statement sequence2>;* C) {1 ^! o, u
else 1 v# ]% b* _) B+ a7 ~
<statement sequence3>;" D1 ~* ~2 b! h/ e+ P3 S
end;, m- R& b+ e% E
如果分支比较多,用:. L! t: }) f6 g0 l) t5 W3 G
inspect <expression>( j3 ^$ F) L- a2 \' d* o
when <constant_list> then# E8 c. g) G8 H3 q
<statement sequence1>;1 F& c1 [1 l9 U
when <constant_list> then- r8 w, z+ z- V% A B4 W- {3 ^: L
<statement sequence2>;
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<statement sequence3>;6 [" @5 u; @+ l& r6 f+ | b% L
end;! {# l2 V- @8 a4 B, Y) _
3 h: N, T' D }) h2循环语句
9 h4 |2 v0 s9 _. S4 |9 q3 I (1) from <statement sequence1>9 S9 h# D6 E9 M4 Y+ h* X: S, Z* n
until <condition> loop6 M ^% H2 R) O; b% L. `
<statement sequence2>;- u7 B/ f: l$ t Y
end;
# A( S5 ], C6 _& s; U (2) while <condition> loop
% R+ D; {, Z; e" c$ Y# I" F. b <statement sequence1>;- q0 F' I2 X9 E
end;
; z: I7 T6 J& o7 L8 [0 Y( J4 A (3) repeat 4 }- @ _3 t" i! o$ w
<statement sequence1>;% @% l8 _" b* @" o* z& ^! s8 o& W2 B
until <condition>;4 v2 y: |3 D/ d0 e! U6 N
(4) for <condition> to <condition> loop7 o$ d2 e1 H' r. e
<statement sequence1>;
3 i) d7 Z# [9 J1 }) B% E next;; o! L- U A( U' ?0 b. n* H
3中断语句
8 r7 r) t% i* Q waituntil <condition> prio <integer expression>;+ [) g0 |8 F. \1 h8 ~
0 x- Q/ T' J ]2 _/ \
7 [6 X: z5 }" V以上为常用的函数!' }; {. q* {+ F0 N. C% k( P
还有很多,如有需要我把资料发到你邮箱里
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