/** 获取temp */
#define CHPathTemp NSTemporaryDirectory()
/** 获取沙盒 Document */
#define CHPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
/** 获取沙盒 Cache */
#define CHPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]