diff --git a/W10D2RUANHANG.pdf b/W10D2RUANHANG.pdf
new file mode 100644
index 0000000..d082deb
Binary files /dev/null and b/W10D2RUANHANG.pdf differ
diff --git "a/W14D2 Note3\347\263\273\347\273\237\346\234\237\346\234\253.pdf" "b/W14D2 Note3\347\263\273\347\273\237\346\234\237\346\234\253.pdf"
new file mode 100644
index 0000000..077a34f
Binary files /dev/null and "b/W14D2 Note3\347\263\273\347\273\237\346\234\237\346\234\253.pdf" differ
diff --git "a/W6D2\351\230\256\350\210\252.pdf" "b/W6D2\351\230\256\350\210\252.pdf"
new file mode 100644
index 0000000..581b3e6
Binary files /dev/null and "b/W6D2\351\230\256\350\210\252.pdf" differ