1
po self.URL.copy
$1 = 0x1fc3ced0 http://maps.googleapis.com/maps/api/staticmap?&zoom=16&size=160x160&maptype=roadmap&sensor=true¢er=-6.2032,106.7696&markers=size:small%7Ccolor:blue%7C-6.2032,106.7696
$2 = 0x1fc3ced0 http://maps.googleapis.com/maps/api/staticmap?&zoom=16&size=160x160&maptype=roadmap&sensor=true¢er=-6.2032,106.7696&markers=size:small%7Ccolor:blue%7C-6.2032,106.7696
$3 = 0x1fc3ced0 http://maps.googleapis.com/maps/api/staticmap?&zoom=16&size=160x160&maptype=roadmap&sensor=true¢er=-6.2032,106.7696&markers=size:small%7Ccolor:blue%7C-6.2032,106.7696
(lldb) po self.URL
$4 = 0x1fc3ced0 http://maps.googleapis.com/maps/api/staticmap?&zoom=16&size=160x160&maptype=roadmap&sensor=true¢er=-6.2032,106.7696&markers=size:small%7Ccolor:blue%7C-6.2032,106.7696
我以爲副本應返回的東西相同,但在不同的地址?爲什麼NSString的複製返回相同的字符串