iphone删除下一个字符串 - 在特定字符串出现后留下字符串的其余部分

Question

在目标c中如何在字符串出现后删除文本。

，比如我有文字出现“好”

后删除文本“iphone是好的，但..”在这里，我不得不删除，但文本最终使文本将现在“iphone好”

Answer 1

试试这个： -

NSArray *array = [string componentsSeperatedBy:@"good"]; 
    NSString *requiredString = [array objectAtIndex:0]; 

Answer 2

NSString * a = @"iphone is good but.."; 
NSRange match = [a rangeOfString:@"good"]; 
NSString * b = [a substringToIndex:match.location+match.length]; 

Answer 3

尝试用下面的代码

NSString *str_good = @"iphone is good but..."; 
NSRange range = [str_good rangeOfString:@"good"]; 
str_good = [str_good substringToIndex:range.location+range.length]; 

Answer 4

如果你想要的特定发生后删除该字符串的其余部分“但是”，你可以得到的范围内“而是”和修剪原始字符串下来

NSString * test = [NSString stringWithString:@"iphone is good but rest of string"]; 
NSRange range = [test rangeOfString:@"but"]; 
if (range.length > 0) { 
    NSString *adjusted = [test substringToIndex:range.location]; 
    NSLog(@"result %@", adjusted); 
} 

编辑 我们可以假设，搜索不希望削减的“奶油黄”，并且可以改变的范围包括“但”

NSRange range = [test rangeOfString:@" but"]; 

Answer 5

NSArray *array = [string componentsSeparatedByString:stringToSearch]; 
NSString *requiredString; 
if ([array count] > 0) { 
    requiredString = [[array objectAtIndex:0] stringByAppendingString:stringToSearch]; 
}