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发表于 2012-11-13 08:48:12
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1判断语句/ z) F( L3 t1 t
if <condition> then" [* w( W/ j) N0 c, C
<statement sequence1>;
* @, }* Z' {& v elseif <condition> then
, S, b' c5 \& M' V0 K3 _9 o- @6 y <statement sequence2>;% W7 O3 A4 X* h+ m
else
+ f* B: N! y9 n/ @ X <statement sequence3>;
9 Q' G# P, C0 x) z. t9 G0 p end;
0 W H7 g( h1 h1 g' F9 d如果分支比较多，用：& N% d# `) g l% P p# g
inspect <expression>
+ `0 E( W+ ~- A6 q; |0 c. K1 x, X when <constant_list> then `4 S! f, z2 f5 C
<statement sequence1>;# ^* O5 ^5 y" O5 M" l
when <constant_list> then
% `! } ^0 ]$ y9 `- H <statement sequence2>;% }+ O4 ?5 B9 N, Z0 R, X% m
...
# R( ?6 h, U0 u% h; C else, n: c p( q. Q1 p& }( ]
<statement sequence3>;
' [1 ^- Y+ ~/ n7 w% Oend;
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2循环语句7 ]7 A1 j! j7 N( x
(1) from <statement sequence1>4 h, u9 m# b2 K6 v" _. U, {, ~
until <condition> loop
4 l, H& Z" Z* k5 ~7 D6 d <statement sequence2>;: L I4 C; a" L! o B" r2 s7 i
end;' P7 i$ c0 b! Y7 |. d' s0 U7 L
(2) while <condition> loop
% Z" P5 L/ ^1 s! N' _1 u0 H <statement sequence1>;" N+ f6 S! V. K
end;% u- e0 v0 _# J$ G0 V" l; Z2 Q
(3) repeat
/ C a5 {4 r _6 G" F* h/ l <statement sequence1>;( |, q _0 |! ?8 E
until <condition>;
* c3 m& w+ b" e& L8 z, \ (4) for <condition> to <condition> loop+ j4 w. U2 T% g4 @) ~
<statement sequence1>;
' |4 J w" [" S$ Z0 P z" g next;, c4 E' L: j- s! g/ `
3中断语句
3 X; O, V% R6 z: @9 `4 ^* i waituntil <condition> prio <integer expression>; {0 R2 z2 X* e9 ]
& T& I0 Q1 n5 W
h7 G; Z! o; v; f. q0 g以上为常用的函数！
: ]$ j! t4 P9 T2 i6 }3 S5 R还有很多，如有需要我把资料发到你邮箱里 - w; D! A) m6 x7 }' S6 V# n
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