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发表于 2012-11-13 08:48:12
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1判断语句0 p. a' L+ m+ \# \" q7 p- E
if <condition> then
1 R4 j* ]5 v1 c/ Z <statement sequence1>;
2 M; y% p9 N3 Z4 @4 b elseif <condition> then+ d e: F i+ O$ F4 l& W
<statement sequence2>;- k9 e' N" @& i' M% Z r; u! q" T
else
% t, j3 F# n" N; t% T7 _8 A <statement sequence3>;/ m$ G5 T" Z/ k7 A' g
end;4 t+ j6 M. `, y
如果分支比较多，用：, R6 \7 O, j, p0 x3 A X! e- }: V1 p
inspect <expression>
& r" g: |1 h7 G% n: z# S when <constant_list> then
- E2 u1 g5 R4 D. Z <statement sequence1>;
: P8 i9 p0 _1 }$ t @2 T* ]! k3 } when <constant_list> then- e4 k& ?/ Z. b6 X
<statement sequence2>;
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else
0 q- D! _' E4 {5 K: O <statement sequence3>;+ t0 S, M0 _: F8 I' t$ a
end;
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2循环语句
% W1 I7 i, S3 ?! Q+ F (1) from <statement sequence1> U5 r& \) @- B, ^' d# ]
until <condition> loop
- }2 c% u. w$ V( z# k <statement sequence2>;
+ ~% e( Z0 X+ ~) S f$ h2 ?# h6 s+ j end;
3 b' f& u1 H5 d, R. {# P (2) while <condition> loop
( z' e+ \" j! O) z <statement sequence1>;
1 [& e& z5 o& h4 i% Z end;+ A o n. w K8 r+ k: o
(3) repeat
$ r( L( s6 S2 ~: C4 s <statement sequence1>;
0 P# _5 k$ h0 x until <condition>;
1 \" Z$ |8 h+ F (4) for <condition> to <condition> loop ~1 n# H/ @" v3 ~! c. O0 Y. x, I1 p
<statement sequence1>;
$ _1 P% k$ T* y2 F" b# y next;: I) A/ U: ~) R; Q! }" E0 |
3中断语句0 B& G" t3 R& a+ L) M7 C ?( `6 F
waituntil <condition> prio <integer expression>;
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" A' c w) F3 f$ n) n以上为常用的函数！3 v) `6 F" p+ N
还有很多，如有需要我把资料发到你邮箱里
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