Question

我只需要从NSString的左边删除空格我的意思是

如果我" This is a good day"，我将"This is a good day"

仅限左侧空格

请提出任何建议

Answer 1

只需使用

NSString* result = [yourString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];

它将从左侧和右侧移除所有额外空间，但不从中间移除

并删除空格和\n使用

NSString* result = [yourString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

Answer 2

使用以下内容删除NSString。

中的白线和新线字符

NSString* result = [yourString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

Answer 3

Nsstring *str="   This is a good day";

  while ([str rangeOfString:@"  "].location != NSNotFound) {
    str = [str stringByReplacingOccurrencesOfString:@"  " withString:@" "];
}

nslog(@"string after removing space %@",)

Answer 4

仅修剪左侧的解决方案是在字符串的右侧添加一个虚拟字符，修剪字符串，然后将其删除。

NSString* tempString = [NSString stringWithFormat@"%@T", yourString];
NSString* result = [yourString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
return [result substringToIndex:[result length]-1];

Answer 5

仅左侧空白

while ([[yourString substringToIndex:1] isEqualToString:@" "])
    yourString = [yourString substringFromIndex:1];

Answer 6

NSString *str = @" This is a good day";    
NSArray *arrString = [str componentsSeparatedByString:@"T"];
NSString *strSpace = [arrString objectAtIndex:0];   // White space
NSString *strString = [arrString objectAtIndex:1];   //This is a good day

然后，您可以在字符串中附加 T

NSString *strT = @"T";
strString = [strT stringByAppendingString:strString];

从NSString的左侧删除空格

6 个答案: