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发表于 2012-11-13 08:48:12
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1判断语句
! h/ x" h K7 j4 E if <condition> then
& g: s$ N1 O, [& e" N- x <statement sequence1>;7 G* ], G V0 G; o
elseif <condition> then& |$ M3 v4 g) z: n: X. S" S. {
<statement sequence2>;
7 R- j; c Z- T, m7 V else
& X5 k* C) C5 B, K$ _1 T1 ?- ` <statement sequence3>;
1 Y- E% u" [' d/ ^( i2 Q. P end;
0 }& X& m( a( Z5 }& M: y# |, P5 \6 U, d如果分支比较多，用：5 J% M2 O0 ^$ H/ M
inspect <expression>
) x) E* y) a7 v: R when <constant_list> then( L a1 x1 w/ J+ ]$ R( E( k3 H
<statement sequence1>;2 a- C( ^ n n# i; y
when <constant_list> then
, F/ T- i& `& u( Y# ^ <statement sequence2>;
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else
' y- _ p0 {3 ]4 p. l2 w <statement sequence3>;/ P* a) {* G, a3 t8 J. J
end;
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2循环语句6 o6 M5 r$ R$ d) o+ _9 [, R, g* a& x, [
(1) from <statement sequence1>
( f7 H# D5 q. k, i until <condition> loop. `7 O9 x* e+ } R- l! D3 \, ~
<statement sequence2>;+ X( y* b' T8 ~8 R
end;( v& N3 z+ p! x0 Q4 |
(2) while <condition> loop
! O# b: C( }1 t" l) P4 n <statement sequence1>;) R+ o+ B6 s d! a3 t6 b4 X X
end;0 R4 D3 M7 _+ B* m9 v# n3 U
(3) repeat
9 r1 x! D0 s1 Q/ @! Z8 D( C <statement sequence1>;4 f$ [# y7 E7 b+ f2 Q+ t
until <condition>;
3 j# z5 {3 C) ^; R) r- E2 B7 b (4) for <condition> to <condition> loop
5 A% H, U7 v, X <statement sequence1>;
7 k$ ]; \4 i% c! X next;2 g6 r+ G# F5 c9 z
3中断语句& p! O; X' U1 ^+ X
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 g0 N: g+ F$ f5 w1 t# |4 ]2 C! ]
还有很多，如有需要我把资料发到你邮箱里 & e2 d* T4 C4 t3 k# E: A5 X
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