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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
2 G/ d) J8 N8 U; ? if <condition> then; y1 R: Y8 ^4 F/ _
<statement sequence1>;
9 ~" X8 u% i. [. E1 W/ } x: F5 j; N elseif <condition> then4 P5 W, d# W! M
<statement sequence2>;
& ]* t6 ^) F, A. [, r else 2 z2 ?: g4 Z7 D6 t# N
<statement sequence3>;
. {2 J7 s% N" U% o5 t( F end;
& d F3 G1 u! \- {# Z如果分支比较多，用：
8 r% O4 h$ b }! r. N; i! ~- x inspect <expression>3 W9 P/ _% [" f" ?, H
when <constant_list> then1 W: k/ i$ I$ p# S5 z
<statement sequence1>;2 M5 t8 b! R& s6 J
when <constant_list> then8 D$ O& i, I- U- E
<statement sequence2>;
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else
0 Q# s) s4 ^3 B8 [" A <statement sequence3>;
5 {" C5 e7 b7 R* u; aend;4 c% i5 B7 N, K' T8 j) `
`( q9 c, V m0 g7 {* e" j! \2循环语句! m" ~- w/ [' [- ^- h
(1) from <statement sequence1>
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: L+ R4 O+ s. L& O0 U1 p1 n <statement sequence2>;8 |2 Z. T; v# A( B, J
end;
9 L6 p) Y% Y6 P (2) while <condition> loop
& m# n1 ^+ B6 ^; h9 Q) u <statement sequence1>;
! f2 ~% R; ?" L7 ? end;
/ I1 q; Z! O; R3 D6 |5 j (3) repeat * ~( N h$ u3 y g! j
<statement sequence1>;8 A1 [! Q2 k) M/ ?; V
until <condition>;, D; {" U- y8 \
(4) for <condition> to <condition> loop2 d3 M) d) p; _8 W# U
<statement sequence1>;
8 e9 r) O8 q2 s, c9 V2 W& X next;& ~/ _$ A& i5 S0 N
3中断语句
* |, O5 C" Y$ M8 U$ x9 f7 c9 s6 M waituntil <condition> prio <integer expression>;- c8 I' k% Y5 \. g% ]% W, a
* w5 `1 y: A+ c" R
/ T, z4 g; ?) w' d% M# A以上为常用的函数！2 O& N" f' _" m) ^6 a6 [% v% j3 G
还有很多，如有需要我把资料发到你邮箱里 ) i5 v( j! w4 O; O4 ~7 J; M
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