iOS NSString 替换字符串

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一.NSString 替换字符串函数简介

/* Replace all occurrences of the target string in the specified range with replacement. Specified compare options are used for matching target. If NSRegularExpressionSearch is specified, the replacement is treated as a template, as in the corresponding NSRegularExpression methods, and no other options can apply except NSCaseInsensitiveSearch and NSAnchoredSearch.
*/
- (NSString *)stringByReplacingOccurrencesOfString:(NSString *)target withString:(NSString *)replacement options:(NSStringCompareOptions)options range:(NSRange)searchRange ;

/* Replace all occurrences of the target string with replacement. Invokes the above method with 0 options and range of the whole string.
*/
- (NSString *)stringByReplacingOccurrencesOfString:(NSString *)target withString:(NSString *)replacement;

/* Replace characters in range with the specified string, returning new string.
*/
- (NSString *)stringByReplacingCharactersInRange:(NSRange)range withString:(NSString *)replacement ;

二.NSString 替换字符串使用

1.stringByReplacingOccurrencesOfString

/******************************************************************************************/
//@Author:猿说编程
//@Blog(个人博客地址): www.codersrc.com
//@File:iOS NSString 替换字符串
//@Time:2021/09/07 08:00
//@Motto:不积跬步无以至千里，不积小流无以成江海，程序人生的精彩需要坚持不懈地积累！
/******************************************************************************************/

NSString* src = @"www.codersrc.com";

//将字符串 www 替换为字符串 com
NSString* dst = [src stringByReplacingOccurrencesOfString:@"www" withString:@"com"];

/*
Printing description of dst:
com.codersrc.com
*/

2.stringByReplacingCharactersInRange

/******************************************************************************************/
//@Author:猿说编程
//@Blog(个人博客地址): www.codersrc.com
//@File:iOS NSString 替换字符串
//@Time:2021/09/07 08:00
//@Motto:不积跬步无以至千里，不积小流无以成江海，程序人生的精彩需要坚持不懈地积累！
/******************************************************************************************/

NSString* src = @"www.codersrc.com";

//把指定位置的字符串替换为字符串 com
NSString* dst = [src stringByReplacingCharactersInRange:NSMakeRange(0, 1) withString:@"com"];

/*
Printing description of dst:
comww.codersrc.com
*/

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