From 7b28fed518f38c663ec24c68cd022eaa0e1224b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E9=B8=BF=E5=A5=87?=
 <10465832+lhqong@user.noreply.gitee.com>
Date: Mon, 20 Feb 2023 03:25:32 +0000
Subject: [PATCH] fixed 0361200 from
 https://gitee.com/lai123/class6nodehomework/pulls/32 66
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Signed-off-by: 刘鸿奇 <10465832+lhqong@user.noreply.gitee.com>
---
 liu/open.js  | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 liu/open.txt |  1 +
 2 files changed, 50 insertions(+)
 create mode 100644 liu/open.js
 create mode 100644 liu/open.txt

diff --git a/liu/open.js b/liu/open.js
new file mode 100644
index 0000000..e238b13
--- /dev/null
+++ b/liu/open.js
@@ -0,0 +1,49 @@
+// ## 作业1:使用open write close的形式去创建一个大文件,
+// 内容随机写点数据,计算出这个大文件出现最多的字符.
+var fs=require('fs');
+fs.open("open.txt",'w',function(err,fd) {
+    // length || (length=8);
+    //const buf1 = Buffer.alloc(5000);
+    const letters='qwertyuiopasdfghjklzxcvbnm';
+    let total='';
+        total+=letters;
+    let result=''
+    let length=1000;
+    while(length>990){
+       length--
+       result+=total[Math.floor(Math.random()*total.length)];
+       fs.writeSync(fd,result+'');
+       
+    }
+    fs.close(fd)
+})
+var fs = require('fs');
+
+// 打开一个流:
+var rs = fs.createReadStream('open.txt', 'utf-8');
+
+rs.on('data', function (chunk) {
+    console.log(chunk);
+    let str=chunk;
+    let k={}
+    for (let i = 0; i < str.length; i++) {
+       let chars=str.charAt(i);
+       if (k[chars]) {
+        k[chars]++;
+       }else{
+        k[chars]=1;
+       }
+        
+    }
+    console.log(k);
+    let max=0;
+    let letter=''
+    for(let i in k){
+     if(k[i]>max){
+         max=k[i];
+         letter=i;
+        
+     }
+    }
+    console.log(`./open.txt中出现最多的文字是${letter},出现了${max}次`);
+});
diff --git a/liu/open.txt b/liu/open.txt
new file mode 100644
index 0000000..ed79a11
--- /dev/null
+++ b/liu/open.txt
@@ -0,0 +1 @@
+iiyiyziyzriyzraiyzrapiyzrapxiyzrapxqiyzrapxqliyzrapxqlk
\ No newline at end of file
-- 
Gitee