I agree 潘sir講10個八次方有成億個組合 as below....+ B7 l2 e5 x4 U$ N4 e1 ]
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0-9有十個numbers # H6 O/ U' |! X( m& etvb now,tvbnow,bttvb八個數目字password 組合係...! A$ M; E$ K- Y0 P
0-9x0-9x0-9x0-9x0-9x0-9x0-9x0-9=10 power 8=100000000=一億 - q, P! P- V( n) L) ^3 B & T" C$ ^$ ]& ?8 Otvb now,tvbnow,bttvbMaybe some people not agree, such my point of view ....:-P