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发表于 2012-11-13 08:48:12
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1判断语句0 y6 D3 m. K7 D, ?6 O
if <condition> then
4 m3 O. e7 _) ^$ d* g& H <statement sequence1>;
0 M8 u* k! T$ ?& Y elseif <condition> then( M! S9 I$ X2 ^: m
<statement sequence2>;/ S$ u7 v8 g; n! b8 S
else 8 J9 P+ f, {/ v. K" V- Q
<statement sequence3>;6 A# t) v/ C1 T2 g) q/ o/ d) C2 _
end;
4 f9 i: O. s; U2 Y9 ]如果分支比较多，用：
* n; E4 W& J# P8 B. z$ D inspect <expression>8 `3 X( T- c# z+ ?( u l
when <constant_list> then7 ^5 U6 Y) X4 _) I) k
<statement sequence1>;5 s: |/ P3 T$ z \, d% Q# i6 b5 _; }
when <constant_list> then
* q# C* h8 a/ _/ O6 _5 I <statement sequence2>;4 f! S; `4 o/ v9 t" c l% U
...
: C$ o: k0 s, Q- p else
# x7 k' [2 W+ o* A; M- | <statement sequence3>;
/ L% V- x1 F1 [, V$ Wend;
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2循环语句
( J( {! g3 Y* }; X. i (1) from <statement sequence1>. k' z- S1 m4 D: O
until <condition> loop
; S& j8 e( L' u9 I0 a <statement sequence2>;1 c, u2 G# u8 j# H
end;
1 t0 E1 v- y8 U1 A% ? (2) while <condition> loop
6 O3 @4 P& T' ]5 T4 q <statement sequence1>;1 Z' f' O* L- y8 _; M
end;
3 s- q( Y; y6 M l6 K! }2 p (3) repeat
3 E2 F [2 |: Y# v <statement sequence1>;: s9 r/ J7 T* \
until <condition>;
" X4 ~9 h; f7 g4 G# l2 D (4) for <condition> to <condition> loop
7 d5 C2 e% R& e <statement sequence1>;
2 o. X" O4 k4 ~8 Q8 @ next;# ~5 T5 g8 M1 J2 p' [
3中断语句. T9 G# G6 c3 d" l- R4 d* k
waituntil <condition> prio <integer expression>;" d, q3 L" i! M) x! B
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& j5 k7 k* k1 U q5 n以上为常用的函数！0 c( K0 @. H( {7 F, _
还有很多，如有需要我把资料发到你邮箱里
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