循环替换
string& replace_all(
string& str,
const string& old_value,
const string& new_value){
while(
true){
string::size_type pos(
0);
if((pos=str.find(old_value))!=
string::npos)
str.replace(pos,old_value.length(),new_value);
else
break;
}
return str;
}
一次替换
string& replace_all_distinct(
string& str,
const string& old_value,
const string& new_value){
for(
string::size_type pos(
0);pos!=
string::npos;pos+=new_value.length()){
if((pos=str.find(old_value,pos))!=
string::npos)
str.replace(pos,old_value.length(),new_value);
else
break;
}
return str;
}
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