Object－C文件的读写_object-c object write file-优快云博客

本文展示了如何使用Objective-C来写入和读取plist文件。通过具体代码实例介绍了数组和字典对象的文件操作过程，并展示了读取文件后的输出结果。

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NSArray *array = [NSArray arrayWithObjects:@"Foo", [NSNumber numberWithBool:YES],[NSDate dateWithTimeIntervalSinceNow:60],nil];
        [array writeToFile:@"MyArray.plist" atomically:YES];
        NSLog(@"file is writed success!");
        
        NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:@"Dingdongxia",@"Name",[NSNumber numberWithInt:36],@"Age", nil];
        [dict writeToFile:@"MyDict.plist" atomically:YES];
        
        NSDictionary *dict1 = [NSDictionary dictionaryWithObjectsAndKeys:
                               @"Sam",@"Name",
                               @"Male",@"Sex",
                               [NSNumber numberWithInt:36],@"Age",
                               @"dingdongxia@163.com",@"Email",
                               @"www.dingdongxia.com",@"Websit",
                               nil];
        
        if ([dict1 writeToFile:@"Sam" atomically:YES]==NO) {
            NSLog(@"make xml is fail!");
        }
        
        //读文件
        NSDictionary *dict1_read = [NSDictionary dictionaryWithContentsOfFile:@"Sam"];
        for (NSString *key in dict1_read) {
            NSLog(@"%@:%@",key,[dict1_read objectForKey:key]);
        }

运行结果如下：

2015-07-27 15:28:40.140 test[634:19716] file is writed success!

2015-07-27 15:28:40.142 test[634:19716] Websit:www.dingdongxia.com

2015-07-27 15:28:40.142 test[634:19716] Sex:Male

2015-07-27 15:28:40.142 test[634:19716] Name:Sam

2015-07-27 15:28:40.142 test[634:19716] Email:dingdongxia@163.com

2015-07-27 15:28:40.142 test[634:19716] Age:36

Sam文件中的内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Age</key>
	<integer>36</integer>
	<key>Email</key>
	<string>dingdongxia@163.com</string>
	<key>Name</key>
	<string>Sam</string>
	<key>Sex</key>
	<string>Male</string>
	<key>Websit</key>
	<string>www.dingdongxia.com</string>
</dict>
</plist>