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发表于 2012-11-13 08:48:12
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1判断语句
1 E( q k& P5 G9 y if <condition> then# ?! p5 i! D6 s: v- }# T& R7 s
<statement sequence1>;% v; J/ h3 F3 Y( _( r
elseif <condition> then
# J& Q/ M3 Z2 s1 O# c: v* W* S% s, q <statement sequence2>;- A1 Y1 s% c! a* I1 `' h' c
else
2 J; w0 F' v8 _( {1 ~& t# | <statement sequence3>;
, ?3 P9 c1 B0 ]9 P6 N) v: N end;7 R7 F, d2 Q$ N. I/ A8 o
如果分支比较多，用：
" G: p# s9 v! H' W inspect <expression>
N- a B# n5 |3 m1 J" m when <constant_list> then
+ `3 Q7 K L# y F; d1 W <statement sequence1>;* ?# V) u" @! I& @" h0 a1 K( a
when <constant_list> then" g6 y2 w6 {! Q* Y- Y+ f) w
<statement sequence2>;1 |4 O8 S) f _% b
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else
j# d# a/ T/ a) A <statement sequence3>;
/ ?* O8 R7 p& _3 |end;
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2循环语句4 d6 W2 Z n/ c5 O2 k: b; f
(1) from <statement sequence1>* f1 J A! f# q6 H" b y
until <condition> loop
. L/ q6 d& ^1 x: ]& D5 V, A <statement sequence2>;9 D6 \1 G- _& ?* F
end;
& d6 [( _" y$ ^- H5 p2 L5 V0 B (2) while <condition> loop
]( ~' h8 U' s* z) C <statement sequence1>;* E& X! M4 L5 N: G* {
end;
4 }( g0 Y- g, a ~ ]2 R1 W (3) repeat
: f# G1 l* i" A' [* G1 P <statement sequence1>;
/ f2 d+ U: |8 ~0 w6 ~$ e% Q: x until <condition>;
: ~3 D' S+ Z: T (4) for <condition> to <condition> loop) H4 y3 Y- l* `# L4 w) T/ c1 e3 F9 B
<statement sequence1>; C6 c8 e" J* Z, r. t
next;. y D% B- ^0 R5 Y$ F, d. s2 y2 a7 W
3中断语句
# p) L9 M0 \; e1 F, B- F4 U9 B waituntil <condition> prio <integer expression>;
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以上为常用的函数！( }! v2 H8 R A, Y
还有很多，如有需要我把资料发到你邮箱里 ! |0 Y5 D: t# v5 n' j- a
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