linkk
题意: 代码:class Solution {
public:
string toLowerCase(string s) {
for(int i=0;s[i];i++){
if(s[i]>='A'&&s[i]<='Z') s[i]+=32;
}
return s;
}
};

linkk
题意: 代码:class Solution {
public:
string toLowerCase(string s) {
for(int i=0;s[i];i++){
if(s[i]>='A'&&s[i]<='Z') s[i]+=32;
}
return s;
}
};