From c85b648d716d12a81aebc8225335ef5894a658b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E8=90=83?= <1941538655@qq.com>
Date: Mon, 27 Feb 2023 09:23:46 +0000
Subject: [PATCH] =?UTF-8?q?=E7=8E=8B=E8=90=83?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: 王萃 <1941538655@qq.com>
---
 .../2.20/zy.js"                               | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 "\347\216\213\350\220\203/\346\250\241\345\235\227\344\275\234\344\270\2322.15/2.20/zy.js"

diff --git "a/\347\216\213\350\220\203/\346\250\241\345\235\227\344\275\234\344\270\2322.15/2.20/zy.js" "b/\347\216\213\350\220\203/\346\250\241\345\235\227\344\275\234\344\270\2322.15/2.20/zy.js"
new file mode 100644
index 0000000..1601315
--- /dev/null
+++ "b/\347\216\213\350\220\203/\346\250\241\345\235\227\344\275\234\344\270\2322.15/2.20/zy.js"
@@ -0,0 +1,54 @@
+// ## 作业1:使用open write close的形式去创建一个大文件,内容从指定的文本中随机取一些（每次取得长度内容可以不一样）,计算出这个大文件出现最多的字符(要使用流的形式).
+
+//引入fs文件
+let fs = require("fs");
+let wj = fs.openSync("./wenjian.txt","w");
+
+//随机定义字符串
+let str = "hfdewhfwehfgoeruihfsh124321374hfgdfjngjkd";
+for(i=0;i<100;i++) {
+    let long = Math.ceil(Math.random() * 20);
+    let kong = "";
+    for(k=0;k<long;k++) {
+        let sj = Math.ceil(Math.random() * str.length);
+        kong = str.charAt(sj);
+    }
+
+    fs.writeFileSync(wj,kong,{flag:'a'});
+
+}
+//关闭文件
+fs.closeSync(wj);
+
+//计算出这个大文件出现最多的字符
+let sz=[];
+let read = fs.createReadStream("./wenjian.txt","utf-8");
+read.on("data", (suiji) =>{
+    console.log(suiji);
+    let nr = suiji;
+    for(let j=0;j<nr.length;j++) {
+        if(sz[nr.charAt(j)] != undefined) {
+            sz[nr.charAt(j)] = sz[nr.charAt(j)] +1;
+        }
+        else{
+            sz[nr.charAt(j)] = 1;
+        }
+    }
+    let max = 0;
+    let zhi = "";
+    for(let key in sz) {
+        if(sz[key] > max) {
+            max = sz[key];
+            zhi=key;
+        }
+    }
+    console.log(sz);
+    console.log("这个文件出现最多的字符是：" +zhi+",共出现了"+max+"次");
+
+});
+//结束监听事件
+read.on("end",()=>{
+    console.log("-------------读取完毕----------------");
+})
+
+
-- 
Gitee