通过将每个字符转换为小写来比较两个字符串,可以手动实现忽略大小写的字符串比较。 #include<stdio.h>#include<ctype.h>// 包含 tolower 函数#include<string.h>// 包含 strlen 函数intcaseInsensitiveCompare(constchar*str1,constchar*str2) {while(*str1 && *str2) {charc1 = tolower((unsignedchar)*str...
AI代码解释 #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...
NSString *string1 = @"Hello"; NSString *string2 = @"hello"; NSComparisonResult result = [string1 compare:string2 options:NSCaseInsensitiveSearch]; 在比较字符串时,可以根据返回的NSComparisonResult值来判断两个字符串的关系: NSOrderedAscending:第一个字符串在字典顺序上排在第二个字符串之前。 NS...
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*)substringToIndex:i 返回从该字符串开始位置到索引i的子字符串 - (NSComparator *)caseInsensitiveCompare:nsstring 比较两个字符串,忽略大小写 - (NSComparator *)compare:nsstring 比较两个字符串 - (BOOL)hasPrefix:nsstring 测试字符串是否以nsstring开始 ...
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"]; ...
//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...
// Initialize the CaseInsensitiveComparer objectObjectCompare =newCaseInsensitiveComparer(); }//////This method is inherited from the IComparer interface. It compares the two objects passed using a case insensitive comparison.//////First object to be compared///Second object to be comp...
{ const UNICODE_STRING* ext; if (Extension->Length == 0) { return FALSE; } // // Check if it matches any one of our static extension list // ext = ScannerExtensionsToScan; ///扩展名的数组 while (ext->Buffer != NULL) { if (RtlCompareUnicodeString(Extension, ext, TRUE) == 0)...