iphone - Xcode 中的字符替换 - Objective-C

Question

我已使用此代码将“\n”替换为“”，但它不起作用。

我该怎么做？

NSString *descString = [values objectForKey:@"description"];
descString = [descString stringByReplacingOccurrencesOfString:@"\n" withString:@""];

NSLog(@"Description String ---->>> %@",descString);
catlog.description = descString;
[webview loadHTMLString:catlog.description baseURL:nil];
webview.opaque = NO;

Answer 1

试试这个

NSString *s = @"foo/bar:baz.foo";
NSCharacterSet *doNotWant = [NSCharacterSet characterSetWithCharactersInString:@"/:."];
s = [[s componentsSeparatedByCharactersInSet: doNotWant] componentsJoinedByString: @""];
NSLog(@"%@", s);

Answer 2

descString = [descString stringByReplacingOccurrencesOfString:@"\\n" withString:@""];

有关详细信息，请参阅stringByReplacingOccurrencesOfString:withString:方法

希望这对您有所帮助。

更新

斯威夫特 3.0

descString.replacingOccurrences(of: "\\n", with: "");

如果我不拧，它也适用于Swift 4.0