//獲取沙盒根目錄
NSString *directory = NSHomeDirectory();
NSLog(@"directory:%@", directory);
//獲取Documents路徑
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
NSLog(@"path:%@", path);
//獲取Library路徑
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
NSLog(@"path：%@", path);
//獲取Caches路徑
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
NSLog(@"path：%@", path);
NSString *tmp = NSTemporaryDirectory();
NSLog(@"tmp：%@", tmp);
UIImage *image = [UIImage imageNamed:@"flower.png"]; NSString *path_sandox = NSHomeDirectory();
//設置一個圖片的存儲路徑
NSString *imagePath = [path_sandox stringByAppendingString:@"/Documents/flower.png"];
//把圖片直接保存到指定的路徑（同時應該把圖片的路徑imagePath存起來，下次就可以直接用來认濉）
[UIImagePNGRepresentation(image) writeToFile:imagePath atomically:YES];
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