代码－Documents路径

NSString *      result;
NSArray *       paths;

result = nil;
paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
if ( (paths != nil) && ([paths count] != 0) ) {
7　　assert([[paths objectAtIndex:0] isKindOfClass:[NSString class]]);
8　　result = [paths objectAtIndex:0];
9　}