NSString *testString = @"春1mianBU觉晓";
NSString *perchar;
int alength = [testString length];
for (int i = 0; i<alength; i++) {
char commitChar = [testString characterAtIndex:i];
NSString *temp = [testString substringWithRange:NSMakeRange(i,1)];
const char *u8Temp = [temp UTF8String];
if (3==strlen(u8Temp)){
NSLog(@"字符串中含有中文");
}else if((commitChar>64)&&(commitChar<91)){
NSLog(@"字符串中含有大写英文字母");
}else if((commitChar>96)&&(commitChar<123)){
NSLog(@"字符串中含有小写英文字母");
}else if((commitChar>47)&&(commitChar<58)){
NSLog(@"字符串中含有数字");
}else{
NSLog(@"字符串中含有非法字符");
}
}
NSString *str = @"i'm a 苹果。...";
for(int i=0; i< [str length];i++){
int a = [str characterAtIndex:i];
if( a > 0x4e00 && a < 0x9fff) NSLog(@"汉字");
}
