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发表于 2012-11-13 08:48:12
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1判断语句7 @1 [/ ?% D* b
if <condition> then# w8 x# ]- _. i$ O
<statement sequence1>;: ]/ V$ e, O5 t
elseif <condition> then+ A! ]$ @6 K. _+ y: |
<statement sequence2>;8 I- X, o+ g4 S0 F) j- D1 [
else
+ c, H: a2 Y) |2 q6 W <statement sequence3>;
# W! y$ ?- m& Y end;
( s& f+ D% H- ~ q# P1 R& p如果分支比较多，用：7 |" A# m; ]7 r/ d
inspect <expression>
; N! o8 Q# c6 G) j! e4 ~ when <constant_list> then) j& e2 z1 h( ~+ I, |/ C, ?
<statement sequence1>;
% {5 J9 L; r9 V" o8 x when <constant_list> then" [7 t9 j# h2 v/ N
<statement sequence2>;9 i# A4 P' I2 o+ C- I
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else
5 u7 ?% x. ?! f1 J <statement sequence3>;9 {0 O O" X$ l5 W" R2 ]8 Y/ X
end;3 f4 r3 A$ g8 I: J
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2循环语句
/ }. ]1 q$ ~* @" V' i (1) from <statement sequence1>/ r4 d0 P7 \. W3 m. i
until <condition> loop
0 k+ ?6 ~# W" j: p, U& |1 @ <statement sequence2>;1 s) y1 J' R1 G, y9 L. p7 M+ {
end;
' F1 W9 m) z2 |. c5 s4 v (2) while <condition> loop/ E0 E' a) F! g/ A, {$ O
<statement sequence1>;& G8 J9 z' G* |: Y6 t6 v" F
end;( r4 ~4 U1 W# ]4 n
(3) repeat ' D9 {( x; s2 `) a% l1 D
<statement sequence1>;
1 W5 O/ D4 t0 W: L( W until <condition>;: x8 t$ @% v% d
(4) for <condition> to <condition> loop. H+ Q: V( n; X9 a( f" R! o/ N
<statement sequence1>;
8 L$ F* e0 x; y# ], H6 W K next;
+ U0 X" b! i5 U6 g3中断语句
" E- m& S1 }. `1 i1 Y* O waituntil <condition> prio <integer expression>;: n( H$ C( |$ x6 i4 v1 s2 Y+ W
- j, D# w" N# V% m9 l& g
( B/ M" V: W4 A6 c, v以上为常用的函数！
4 ?4 e( c$ I" g9 w+ Y }1 v还有很多，如有需要我把资料发到你邮箱里
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