几种字符串拼接方式

来源：互联网发布：php权限管理系统编辑：程序博客网时间：2024/05/21 17:11

// 1.拼接字符串    NSString* homePath = NSHomeDirectory();    // 简单拼接字符串    NSString* docPath1 = [homePath stringByAppendingString:@"/Documents"];    // 拼接路径,自动中间加"/"    NSString *docPath2 = [homePath stringByAppendingPathComponent:@"Documents"];    // 拼接扩展名,文件后缀,自动中间加"."    NSString *docPath3 = [homePath stringByAppendingPathExtension:@"Documents"];    // 格式化拼接字符串    NSString *str = @"Documents";    NSString *docPath4 = [homePath stringByAppendingFormat:@"/%@", str];    NSLog(@"---%@", docPath1);    NSLog(@"---%@", docPath2);    NSLog(@"---%@", docPath3);    NSLog(@"---%@", docPath4);

输出结果:

2015-11-26 20:19:22.608 01-plist存储[3822:360712] ---/Users/zh/Library/Developer/CoreSimulator/Devices/8EE05444-0DC3-49F7-A827-DCE72186F069/data/Containers/Data/Application/42691849-97D7-49C7-89AB-C0713B655D08/Documents2015-11-26 20:19:22.608 01-plist存储[3822:360712] ---/Users/zh/Library/Developer/CoreSimulator/Devices/8EE05444-0DC3-49F7-A827-DCE72186F069/data/Containers/Data/Application/42691849-97D7-49C7-89AB-C0713B655D08/Documents2015-11-26 20:19:22.609 01-plist存储[3822:360712] ---/Users/zh/Library/Developer/CoreSimulator/Devices/8EE05444-0DC3-49F7-A827-DCE72186F069/data/Containers/Data/Application/42691849-97D7-49C7-89AB-C0713B655D08.Documents2015-11-26 20:19:22.609 01-plist存储[3822:360712] ---/Users/zh/Library/Developer/CoreSimulator/Devices/8EE05444-0DC3-49F7-A827-DCE72186F069/data/Containers/Data/Application/42691849-97D7-49C7-89AB-C0713B655D08/Documents

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