diff --git "a/\344\274\215\346\231\272\350\276\211/Demo.js" "b/\344\274\215\346\231\272\350\276\211/Demo.js"
new file mode 100644
index 0000000000000000000000000000000000000000..7da689cf76857722c17666e8db414f29dd03c882
--- /dev/null
+++ "b/\344\274\215\346\231\272\350\276\211/Demo.js"
@@ -0,0 +1,41 @@
+let fs = require('fs')
+
+function readfire(){
+    let num,set=hok=5;
+    for(let i=1; i<=100; i++)
+    {
+        let fd = fs.openSync(`./login${i}.txt`,'w')
+        let cc = Math.round(Math.random()*100);
+
+        fs.writeSync(fd,`${cc}`)
+        
+        let buffer=fs.readFileSync(`./login${i}.txt`,{flag:'r',encoding:'utf8'});
+            num = buffer.toString()
+            console.log(i+"个文件:"+num);
+            
+            fs.closeSync(fd)
+            
+            /** 
+            Number(num)==Math.max(Number(num))
+            if(Math.max(Number(num)) < Number(num)+1) {
+                console.log(Math.max(Number(num)));
+                set = Number(num)
+                console.log("最大值"+set);
+            }
+            */
+           
+        if(set < Math.max(Number(num))) {
+            set = Math.max(Number(num))
+        }
+
+        if(hok > Math.min(Number(num))) {
+            hok = Math.min(Number(num))
+        }
+        
+         
+    }
+    console.log("最大值"+set);
+    // console.log("最小值"+Math.min.apply(null,hok));
+    console.log("最小值"+hok);
+}
+readfire()
\ No newline at end of file