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发表于 2012-11-13 08:48:12
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1判断语句8 ^/ _* H4 }0 v- A. z" C/ T
if <condition> then
1 [( j' L5 G v3 H- S# n <statement sequence1>;
/ ? I/ U1 j* A$ e6 {4 _ elseif <condition> then6 w* c3 Z* M0 v% f0 Z3 `0 j7 u7 y( a
<statement sequence2>;. `1 E" Z- r8 ?
else 1 Z$ _, n% u: j4 C( {
<statement sequence3>;
; T& W+ n1 f `+ E. J7 o% g4 M end;
: L( P' [! V3 m9 X( E1 w& U如果分支比较多,用:+ _5 R; R3 i4 Q9 m, y5 K
inspect <expression>3 C3 s9 ?5 _1 c) E
when <constant_list> then
* S7 \3 E5 Y& _% A, b i: U <statement sequence1>;9 f* b0 A+ B8 n( y3 f
when <constant_list> then
0 Y/ V. O4 n0 x: P, O% ~+ X8 v <statement sequence2>;
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else
. z. D) B7 S4 N <statement sequence3>;- a* I- g7 M( T; \9 c$ g
end;
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) r& r0 k; {+ N# q, _2循环语句% ]9 v/ ?% t* ?; M
(1) from <statement sequence1>& }7 ?- s% |& Q( m
until <condition> loop
- G" B: d U" f! C5 { <statement sequence2>;
4 d( ^, f+ |$ `6 O) V2 s Z; R5 w end;6 |7 e0 s5 U6 D7 J# W
(2) while <condition> loop: _4 o o |3 H
<statement sequence1>;) U4 \& L/ z. o1 X$ j0 Q/ a' Q
end;* o. q1 h- P6 |1 u
(3) repeat
1 K9 e# m* }4 u: J6 p <statement sequence1>;2 a0 j0 {; Y. X/ C. k: k
until <condition>;7 r' l$ l. Q( ~& W" f
(4) for <condition> to <condition> loop
: @. h" I2 R7 k ` <statement sequence1>;$ [9 e$ q5 {/ v3 X) d! t2 ?
next;
2 ^8 v, A- F. F$ j, e/ a. |3中断语句
" z! L0 p6 Q4 q( o8 c- m waituntil <condition> prio <integer expression>;
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0 ?6 E8 I6 n( P6 L- ~以上为常用的函数!
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