diff --git "a/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/com.txt" "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/com.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..5d41baf02fbbc76e13335239f317b8b6e88d0545
--- /dev/null
+++ "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/com.txt"
@@ -0,0 +1 @@
+${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}${qwert}
\ No newline at end of file
diff --git "a/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt" "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..0e0d3fc6f46edbd4eb6430e99dae3565c9efee00
--- /dev/null
+++ "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt"
@@ -0,0 +1 @@
+${qwert}
\ No newline at end of file
diff --git "a/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/fs.js" "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/fs.js"
new file mode 100644
index 0000000000000000000000000000000000000000..922b881a7465f590daabdb6620844e5ae1a55147
--- /dev/null
+++ "b/\346\236\227\346\230\261/\346\226\207\344\273\266\350\257\273\345\217\226/fs.js"
@@ -0,0 +1,11 @@
+let fs = require('fs');
+for(let i = 1 ; i <= 100 ;i++){
+    let ason = Math.ceil(Math.random()*10)
+    let fn =fs.openSync('./com.txt','a')
+    let fd = fs.openSync('./demo${i}.txt',"w");
+    fs.writeSync(fd,'${qwert}');
+    fs.writeSync(fn,'${qwert}');
+    fs.closeSync(fd);
+}
+let buffer = fs.readFileSync("./com.txt",{flag:'r',encoding:'utf8'});
+console.log(buffer.toString());