bool caseInsensitiveStringCompare(const string& str1, const string& str2) { if (str1.size() != str2.size()) { return false; } for (string::const_iterator c1 = str1.begin(), c2 = str2.begin(); c1 != str1.end(); ++c1, ++c2) { if (tolower(*c1) != tolower(*c2)) {...
4. - stringByReplacingOccurrencesOfString: 替换字符串中的子字符串为给定的字符串 stringByReplacingOccurrencesOfString 5. - compare: 比较两个字符串的大小, 大于 返回1 相等返回0 小于返回-1 compare 6. -caseInsensitiveCompare: 不区分大小写比较字符串 caseInsensitiveCompare 7. - componentsSeparatedByString:...
NSString *newString = [string1 stringByAppendingFormat:@"%@", string2];stringByAppendingString:// 拼接字符窜(只能拼接一个) NSString *newString2 = [String1 stringByAppendingString:@"入门基础"];// 打印iOS入门基础 9.字符串的替换 stringByReplacingOccurrencesOfString: withString:// 将目标字符串...
NSString比较是区分大小写的,如果需要不区分大小写的比较,可以使用caseInsensitiveCompare:方法。 代码语言:objective-c 复制 NSString *string1 = @"hello"; NSString *string2 = @"Hello"; NSComparisonResult result = [string1 caseInsensitiveCompare:string2]; if (result == NSOrderedAscending) { NSLog(@"s...
#include<stdio.h>#include<string.h>intcaseInsensitiveCompare(char*str1,char*str2){while(*str1&&*str2){if(toLowerCase(*str1)!=toLowerCase(*str2)){return0;// 不相等}str1++;str2++;}return*str1==*str2;// 判断是否同时到达字符串末尾}intmain(){char str1[]="Hello";char str2[]=...
case NSOrderedDescending: NSLog(@"后面一个字符串小于前面一个"); break; case NSOrderedSame: NSLog(@"两个字符串一样"); break; } 输出结果: 后面一个字符串大于前面一个 -(NSComparisonResult) caseInsensitiveCompare:(NSString *)string; 忽略大小写进行比较,返回值与compare:一致 ...
NSString *astring = [[NSString alloc] initWithString:[NSString stringWithFormat:@"%d.This is %i string!",i,j]]; NSLog(@"astring:%@",astring); 6、创建临时字符串 NSString *astring; astring = [NSString stringWithCString:"This is a temporary string"]; ...
#include <string.h> int caseInsensitiveCompare(char* str1, char* str2) { while (*str1 && *str2) { if (toLowerCase(*str1) != toLowerCase(*str2)) { return 0; // 不相等 } str1++; str2++; } return *str1 == *str2; // 判断是否同时到达字符串末尾 ...
//比较字符串的大小 NSString *string10=[[NSString alloc]initWithString:@"a"]; NSString *string11=[[NSString alloc]initWithString:@"b"]; NSComparisonResult result=[string10 caseInsensitiveCompare:string11]; NSLog(@"%ld",result); //-1表示升序 ...
实现2:lexicographical_compare(iter1 beg1,iter1 end1,iter2 beg2,iter2 end2,比较comp) 输出: geeksforgeeks is not lexicographically less than Gfg geeksforgeeks is lexicographically less than Gfg( case-insensitive ) 可能的应用:比较字符串通常可以在字典中使用,在字典中我们需要按字典顺序放置单词。例如...