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发表于 2012-11-13 08:48:12
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1判断语句
( s4 |& ?1 N( j' p3 t/ s7 G1 b+ f if <condition> then$ h+ K: p. p2 e- T5 \
<statement sequence1>;
n5 z, I0 H1 c elseif <condition> then
! w# y; J4 B3 @ <statement sequence2>;( W: l. _& N& @4 V$ L9 y/ m
else
: x7 ?4 w/ H1 c7 [' a <statement sequence3>;
/ v. S n a7 n% V! N) Y end;
+ Q' H! i- O# Z: ~$ s; D如果分支比较多,用:
& b# }! F- o2 T* g2 p' x inspect <expression>% E8 f5 ~" `& H# |/ D' _, M: c
when <constant_list> then/ }) ]8 c) ?( y0 s) O; Z& N
<statement sequence1>;
$ V" |' r9 D" r when <constant_list> then: M) ^" }6 v" g) A& w
<statement sequence2>;
+ a. h' }% y8 d- a4 _9 Z0 M ...- `# d1 p/ i& I/ N5 N% h: i" |5 p
else
# b5 R' C+ c$ g. y <statement sequence3>;
8 m" h+ o& ^$ g! Rend;
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+ j2 A; p0 o+ m2循环语句
" I# }: Z% H2 O* L( y (1) from <statement sequence1>
9 h9 G9 F- t5 v. b1 o. r until <condition> loop! n4 D3 X! |& d1 S* w) l4 U! j
<statement sequence2>;( ?( m6 J% Z: w4 y5 g' C
end;$ Y+ F0 p# M3 ^6 c* q4 B
(2) while <condition> loop1 Q% @+ k; i8 [1 i7 O9 o
<statement sequence1>;
7 Q$ I( ]' J. U& H9 K% S end;
4 S+ }; I" C7 H (3) repeat 9 f/ S1 l6 R; I- s. N1 g& d) C
<statement sequence1>;
& V7 J* `8 q0 p. o until <condition>;
; T7 F2 y* {- T* r4 H' {2 N (4) for <condition> to <condition> loop$ H4 j+ @, `1 b
<statement sequence1>;9 S! x& r7 O6 }" M2 c: f! W
next;
% [ M1 _+ }5 |& q: H4 {- N3中断语句 p" V3 G, ^( ?) O" Q9 H4 B
waituntil <condition> prio <integer expression>;
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以上为常用的函数!/ G; Z9 ? p# X5 C1 P2 Z8 S/ H; t
还有很多,如有需要我把资料发到你邮箱里 $ O) i2 {0 C; Z, v" E
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