diff --git a/ui.c b/ui.c
index 0236497..d632b3d 100644
--- a/ui.c
+++ b/ui.c
@@ -16,10 +16,13 @@
 struct bottom{
     int x,y;
     int width,height;
-    char *test[10];
+    char *test[30];
+    int private;
 };
 
-typedef void (*ButtonCallback)();
+void draw_bottom(WINDOW *win,struct bottom *bot){
+    mvwprintw(win,bot->y,bot->x,"%s",bot->test);
+}
 
 struct bottom *creat_bottom(WINDOW *win,int x,int y,int width,int height,char *test[]) {
     struct bottom *bot=malloc(sizeof(struct bottom));
@@ -28,12 +31,14 @@ struct bottom *creat_bottom(WINDOW *win,int x,int y,int width,int height,char *t
     bot->width=width;
     bot->height=height;
     strcpy(bot->test,test);
-    mvwprintw(win,x,y,"%s",test);
+    //mvwprintw(win,x,y,"%s",test);
     return bot;
 }
+
 bool click_bottom(MEVENT event,struct bottom bottom,int sx,int sy){
     return event.x-sx>= bottom.x && event.x-sx < bottom.x + bottom.width && event.y-sy >= bottom.y && event.y-sy < bottom.y + bottom.height;
 }
+
 int Welcome_ui() {
     MEVENT event;
     int startx, starty;
@@ -53,8 +58,11 @@ int Welcome_ui() {
     // 标题
     mvwprintw(welcome_win, 1, 1, "Welcome to math calculate system!");
     struct bottom *login= creat_bottom(welcome_win,4,1,5,1,"Login");
+    draw_bottom(welcome_win,login);
     struct bottom *signin= creat_bottom(welcome_win,8,1,6,1,"Signin");
+    draw_bottom(welcome_win,signin);
     struct bottom *exit= creat_bottom(welcome_win,12,1,4,1,"Exit");
+    draw_bottom(welcome_win,exit);
     wrefresh(welcome_win);
     while(1){
         int rc=wgetch(welcome_win);
@@ -63,11 +71,11 @@ int Welcome_ui() {
                 //mvwprintw(welcome_win, 3, 1, "Mouse at (%d, %d), button %d", event.x-start_x, event.y-start_y, event.bstate);
                 if(click_bottom(event,*login,start_x,start_y)){
                     free(login);free(signin);free(exit);endwin();
-                    return 1;
+                    return 2;
                 }
                 if(click_bottom(event,*signin,start_x,start_y)){
                     free(login);free(signin);free(exit);endwin();
-                    return 2;
+                    return 3;
                 }
                 if(click_bottom(event,*exit,start_x,start_y)){
                     free(login);free(signin);free(exit);endwin();
@@ -78,8 +86,103 @@ int Welcome_ui() {
     }
 }
 
-int Login_ui(){
+void draw_login_window(WINDOW *win,struct bottom *login,struct bottom *signin,struct bottom *user,struct bottom *psword,struct bottom *exit) {
+    // 清空窗口并绘制边框
+    wclear(win);
+    box(win, 0, 0);
 
+    // 标题
+    mvwprintw(win, 1, (WIN_WIDTH - 10) / 2, "Login Menu");
+
+    // 用户名输入框
+    mvwprintw(win, 3, 4, "Username:");
+
+    // 密码输入框
+    mvwprintw(win, 6, 4, "Password:");
+    //绘制剩余内容
+    draw_bottom(win,login);
+    draw_bottom(win,signin);
+    draw_bottom(win,exit);
+    draw_bottom(win,user);
+    draw_bottom(win,psword);
+    wrefresh(win); // 刷新窗口
+}
+
+void get_input(WINDOW *win, int y, int x, char *buffer, int max_len,struct bottom *bot,int sx,int sy) {
+    MEVENT event;
+    int ch, pos = 0;
+    char *test=bot->test;
+    while(pos<max_len&&buffer[pos]!='\0')pos++;
+    while (1) {
+        ch= wgetch(win);
+        if (ch == KEY_BACKSPACE || ch == 8) { // 处理退格键
+            if (pos > 0) {
+                pos--;
+                buffer[pos]='\0';
+                test[pos+1]='_';
+                draw_bottom(win,bot);
+                wrefresh(win);
+            }
+        } else if (pos < max_len - 1 && ch >= 32 && ch <= 126) { // 可打印字符
+            buffer[pos++] = ch;
+            if(bot->private==0)test[pos]=ch;
+            else test[pos]='*';
+            draw_bottom(win,bot);
+            wrefresh(win);
+        }
+        else if(ch== KEY_MOUSE){
+            if(nc_getmouse(&event)==OK){
+                if(!click_bottom(event,*bot,sx,sy)){
+                    return;
+                }
+            }
+        }
+    }
+}
+int Login_ui(){
+    MEVENT event;
+    int start_y = (LINES - WIN_HEIGHT) / 2;
+    int start_x = (COLS - WIN_WIDTH) / 2;
+    WINDOW *login_win = newwin(WIN_HEIGHT, WIN_WIDTH, start_y, start_x);
+    keypad(login_win,TRUE);
+    char *username[15];      //储存用户名
+    memset(username, 0, 15); // 清空缓冲区
+    char *password[15];      //储存密码
+    memset(password, 0, 15); // 清空缓冲区
+    struct bottom *login= creat_bottom(login_win,10,4,5,1,"Login");
+    struct bottom *signin= creat_bottom(login_win,10,14,5,1,"Signin");
+    struct bottom *exit= creat_bottom(login_win,10,25,5,1,"Exit");
+    struct bottom *users= creat_bottom(login_win,4,4,16,1,"[______________]");
+    struct bottom *psword= creat_bottom(login_win,7,4,16,1,"[______________]");
+    psword->private=1;users->private=0;
+    while(1){
+        draw_login_window(login_win,login,signin,users,psword,exit);
+        int rc=wgetch(login_win);
+        if(rc==KEY_MOUSE){
+            if(nc_getmouse(&event)==OK){
+                //mvwprintw(welcome_win, 3, 1, "Mouse at (%d, %d), button %d", event.x-start_x, event.y-start_y, event.bstate);
+                if(click_bottom(event,*login,start_x,start_y)){
+                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
+                }
+                if(click_bottom(event,*signin,start_x,start_y)){
+                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
+                    return 3;
+                }
+                if(click_bottom(event,*exit,start_x,start_y)){
+                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
+                    return 1;
+                }
+                if(click_bottom(event,*users,start_x,start_y)){
+                    get_input(login_win, 4, 6, username, 15,users,start_x,start_y);
+                    continue;
+                }
+                if(click_bottom(event,*psword,start_x,start_y)){
+                    get_input(login_win, 7, 6, password, 15,psword,start_x,start_y);
+                    continue;
+                }
+            }
+        }
+    }
 }
 
 int Signin_ui(){