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发表于 2012-11-13 08:48:12
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1判断语句" k0 z& S0 T B& `0 V
if <condition> then: T2 O4 e! D4 K0 [0 Z4 f. T& H
<statement sequence1>;
/ _ S" G1 I! n I1 Z3 }, H elseif <condition> then" [( m, W: ]# f. L. Q, `; R) B
<statement sequence2>;# S/ x0 ?# H1 c N' b5 X, @, g
else / T) j; ~6 l; V J6 ]% N5 t2 ~, {( p
<statement sequence3>;
9 o1 \+ b, O0 D8 i8 K" a3 G end;. y; E6 M) R0 k7 ^
如果分支比较多，用：
8 ~8 `% P/ _* f inspect <expression>
8 _% ]. i' Y* x when <constant_list> then
8 Q# ?3 n% G9 |$ q& n$ q/ l6 m b- @% o5 ^ <statement sequence1>;
C( b9 v) k6 i1 s when <constant_list> then, H" s% K% R1 t5 D
<statement sequence2>;
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else# F7 U5 n. ?9 d& s7 h1 n
<statement sequence3>;0 G" Y/ N, M1 O$ j
end;" \3 S5 o. x# j0 w6 `
2 d; o2 A2 k7 u" H% D# P& b. P2循环语句
; H l9 X6 G2 {# c (1) from <statement sequence1>8 \, n' B, ?8 ~
until <condition> loop
1 n/ X9 K6 r/ X* J <statement sequence2>;
t* h- t- P/ C: `! b end;. F- l" c2 [+ `
(2) while <condition> loop' r! E( o# G) Q7 t4 L% c
<statement sequence1>;' j/ |) `1 i6 M
end;
5 j: {" u' E( c% f( D5 d (3) repeat
4 b1 W! X( w- @% R. F7 g <statement sequence1>;
! a7 l( U1 V$ G. a' ], ~$ R until <condition>;9 g6 Z9 d2 s2 k0 }9 R8 g
(4) for <condition> to <condition> loop: p, \# h$ p$ h/ ]! ~# Y- ^8 j4 _
<statement sequence1>;# l7 S- X& Z- g5 ]& w+ K& L0 S
next;
, N$ ^9 j4 B/ Z2 f5 T; P5 k3中断语句
+ s9 E8 c; g$ W5 [* e8 u, W waituntil <condition> prio <integer expression>;# w3 Y( p; U8 {9 c, S$ M# A' e3 r. q' j
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. T/ o- M1 ^) O4 l& ]3 d1 b8 i以上为常用的函数！
1 R6 `3 y/ [' m4 S( \, Q# A. B7 g8 P还有很多，如有需要我把资料发到你邮箱里 , L+ b1 i# n. |( g
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