<span style="background-color: rgb(255, 255, 255);">Update:</span>
<span style="background-color: rgb(255, 255, 255);">如下评论中 脱离语言 所说oc单例实现采用如下形式:</span>
+ (NetworkManager *)sharedInstance
{
static dispatch_once_t onceToken;
static NetworkManager * sSharedInstance;
dispatch_once(&onceToken, ^{
sSharedInstance = [[NetworkManager alloc] init];
});
return sSharedInstance;
}
</span>
<span style="background-c......
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