本文实例为大家分享了iOS截取字符串中汉字的具体代码，供大家参考，具体内容如下
写了一个简单的例子，从第一个汉字开始截取字符串。下面贴上代码：
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#import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; NSArray *array = @[@"03-15_01苹果", @"412香蕉", @"#7&@15橙子"]; for (int i = 0; i < array.count; i++) { NSString *chineseStr = [self getChineseStringWithString:array[i]]; NSLog(@"chineseStr = %@\n", chineseStr); }} - (NSString *)getChineseStringWithString:(NSString *)string{ //(unicode中文编码范围是0x4e00~0x9fa5) for (int i = 0; i < string.length; i++) { int utfCode = 0; void *buffer = &utfCode; NSRange range = NSMakeRange(i, 1); BOOL b = [string getBytes:buffer maxLength:2 usedLength:NULL encoding:NSUTF16LittleEndianStringEncoding options:NSStringEncodingConversionExternalRepresentation range:range remainingRange:NULL]; if (b && (utfCode >= 0x4e00 && utfCode <= 0x9fa5)) { return [string substringFromIndex:i]; } } return nil;} @end |
运行结果：
2016-03-22 22:10:23.639 HWEncodeTest[502:8824] chineseStr = 苹果
2016-03-22 22:10:23.639 HWEncodeTest[502:8824] chineseStr = 香蕉
2016-03-22 22:10:23.640 HWEncodeTest[502:8824] chineseStr = 橙子
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/hero_wqb/article/details/50959011
