NSString *dealString = @"asdasdfasdfads";
NSString *resultString = @"";
if (dealString.length > 0) {
resultString = [dealString stringByReplacingCharactersInRange:NSMakeRange(0,1) withString:[[dealString substringToIndex:1] capitalizedString]];
}
NSLog(@"resultString = %@", resultString);
控制台输出: resultString = Asdasdfasdfads
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