//循环方法
///核心思想是找到相同字符串就对字符串进行截取，然后对剩余字符串进行
- (NSInteger)getCountFrom:(NSString)allStr with:(NSString)cutStr{
//空的时候直接返回0
if (allStr.length == 0) {
return 0;
}
//接下来是处理字符串
NSString *leftStr = allStr;
NSInteger includeCount = 0;
//显得我严谨，其实这里循环条件无所谓
while (leftStr.length >= cutStr.length) {
NSRange range = [leftStr rangeOfString:cutStr];
if (range.location != NSNotFound) {
includeCount += 1;
leftStr = [leftStr substringFromIndex:range.location + range.length];
}else{
return includeCount;
}
}
return includeCount;
}
//递归方法
///核心思想是找到相同字符串就对字符串进行截取，然后对剩余字符串进行
- (NSInteger)getCountFrom1:(NSString)allStr with:(NSString)cutStr{
static NSInteger includeCount = 0;
//直接处理字符串
if (allStr.length < cutStr.length) {
return includeCount;
}
NSRange range = [allStr rangeOfString:cutStr];
if (range.location != NSNotFound) {
includeCount += 1;
[self getCountFrom1:[allStr substringFromIndex:range.location + range.length] with:cutStr];
}else{
return includeCount;
}
return includeCount;
}
