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发表于 2012-11-13 08:48:12
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1判断语句 C1 W$ |+ N/ K) C, g5 g# O
if <condition> then
+ @* l4 i5 x- c: n& H) s$ t <statement sequence1>;% c: w; A* X9 _
elseif <condition> then8 a3 |9 S4 Y( Y1 t5 t/ g& Y3 [
<statement sequence2>;2 |& u6 Q8 a3 H. X: G% G* g4 }; y# L
else
# J1 h8 Y! T+ I+ Y A. T <statement sequence3>;( t, ?5 V* ?" @' V
end;0 p, g: n( }. _
如果分支比较多，用：
+ x X |& t4 B5 s. ~9 w' Z inspect <expression>
) b4 q8 [# k; q" N when <constant_list> then
/ r L8 N& H4 a) ^6 Y/ ]8 } <statement sequence1>; ^4 K) C& l7 t) t _: B
when <constant_list> then
+ W% y) ~9 z2 r# j" S <statement sequence2>;' J; D* Z& b/ s ?& h% J
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else; X: H; M8 W- h: l$ W
<statement sequence3>;
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( n8 S, H! ?1 {1 p! p5 l( l- i2循环语句# K) o4 p/ ]2 ]: ~8 y1 a' B
(1) from <statement sequence1>" J S9 [) I4 g* ~' h7 X
until <condition> loop
0 I% w* P8 w5 t. {3 w' [ <statement sequence2>;9 Z" G2 H6 R, e. O
end;
2 W! i1 S7 n: k: v9 Z1 g% g! e (2) while <condition> loop/ _# g8 N/ Y8 C7 B$ c( H$ c" I
<statement sequence1>;
! k4 R" H, ]0 e- R1 V# @ end;
K3 r; W: m5 ]- D (3) repeat ' p5 @$ v6 x0 O' P
<statement sequence1>;
8 p# h( Z9 Q8 C7 b until <condition>;' T, S% }& h) m3 ?" ~1 o$ F
(4) for <condition> to <condition> loop
! ?2 ~6 ^: S8 L+ } <statement sequence1>;
1 u' S# d/ t. {+ R' G, o1 S next;
! R9 c' m: o4 h; f! e3中断语句
5 A. B) ]6 T$ H4 g" S4 u& {8 u& D waituntil <condition> prio <integer expression>;
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: d4 Q% z3 p) J& {以上为常用的函数！
- q& t: z! R# S7 T0 }$ k还有很多，如有需要我把资料发到你邮箱里 0 e/ R1 f6 ^$ s* k, Z" k/ J
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