ASCll

#include <bits/stdc++.h> using namespace std; int main(){ char a; cin>>a; if(a>=65 && a<=97){ a-=32; cout<<a; }else if(a>=97 && a<=122){ a+=32; cout<< ......

#include <iostream> #include <string> using namespace std; int main(int argc, char** argv) { string a; cin>>a; int b; char c; for(int i=0;i<a.size();i ......

请求信息十六进制显示 代码案例： private static String byteArr2HexStr(byte[] buf,int len){ StringBuffer sbuffer = new StringBuffer(); int cnt = 0; for (int i=0;i<len; ......