[Code Note] iOS-string replacement carriage return and line feed, ios-line feed

[Code Note] iOS-string replacement carriage return and line feed, ios-line feed

I. Code.

-(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // Replace the carriage return and space NSString * oldStr = @ "1 2 4"; NSLog (@ "---- oldStr --- % @", oldStr ); // remove the trailing space NSString * newStr = [oldStr stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceCharacterSet]; NSLog (@ "--- newStr --- % @", newStr ); // remove the space NSString * newNewStr = [newStr stringByReplacingOccurrencesOfString: @ "" withString: @ ""]; NSLog (@ "--- newNewStr -- % @", newNewStr );}

 

2. output.

13:16:50. 310 string replacement carriage return and line feed [7678: 198286] ---- oldStr --- 1 2 4 13:16:50. 311 string replacement carriage return and line feed [7678: 198286] --- newStr --- 1 2 42015-10-23 13:16:50. 311 string replacement carriage return and line feed [7678: 198286] --- newNewStr -- 124