1 //方法一:
2 - (NSUInteger)wordCount:(NSString *)str {
3 NSUInteger words = 0;
4 NSScanner *scanner = [NSScanner scannerWithString: str];
5
6 // Look for spaces, tabs and newlines
7 NSCharacterSet *whiteSpace = [NSCharacterSet whitespaceAndNewlineCharacterSet];
8 while ([scanner scanUpToCharactersFromSet:whiteSpace intoString:nil])
9 words++;
10 return words;
11 }
12
13 //方法二:
14 - (int)countWord:(NSString*) s{
15 int i,n=[s length],l=0,a=0,b=0;
16 unichar c;
17 for(i=0;i<n;i++){
18 c=[s characterAtIndex:i];
19 if(isblank(c)){
20 b++;
21 }else if(isascii(c)){
22 a++;
23 }else{
24 l++;
25 }
26 }
27 // if(a==0 && l==0) return 0;
28 return l+(int)ceilf((float)(a+b)/2.0);
29 }
