iOS判断字符串中含不含有汉字

方法一：

- (BOOL)hasChinese:(NSString *)str {

for(int i=0; i< [str length];i++){

int a = [str characterAtIndex:i];

if( a > 0x4e00 && a < 0x9fff)

{

return YES;

}

}

return NO;

}

方法二：

- (BOOL)isHasChineseWithStr:(NSString *)strFrom {

for (int i=0; i<strFrom.length; i++) {

NSRange range =NSMakeRange(i, 1);

NSString * strFromSubStr=[strFrom substringWithRange:range];

const char *cStringFromstr = [strFromSubStr UTF8String];

if (strlen(cStringFromstr)==3) {

//汉字

return YES;

} else if (strlen(cStringFromstr)==1) {

//字母

}

}

return NO;

}