diff --git a/src/appmanagermodel.cpp b/src/appmanagermodel.cpp
index 0389854de1359e59bd44a0ffe9fe5c7c0db08cf5..a7e1498aae94b831a3e6c25a6e09f66424d7cac9 100644
--- a/src/appmanagermodel.cpp
+++ b/src/appmanagermodel.cpp
@@ -46,13 +46,13 @@ QString AppManagerModel::formatePkgInfo(const PkgInfo &info)
                            "桌面文件：%11\n执行命令：%12\n执行路径：%13\n依赖：%14\n描述：%15\n\n")
                        .arg("")
                        .arg(info.pkgName)
-                       .arg(info.installedSize ? formatBytes(info.installedSize * 1024, 2) : "0 B")
+                       .arg(info.installedSize ? formatBytes(info.installedSize * 1024, 2) : "0B")
                        .arg(info.updatedTime)
                        .arg(info.maintainer)
                        .arg(info.arch)
                        .arg(info.version)
                        .arg(info.downloadUrl)
-                       .arg(info.pkgSize ? formatBytes(info.pkgSize, 1) : "0 B")
+                       .arg(info.pkgSize ? formatBytes(info.pkgSize, 1) : "0B")
                        .arg(info.homepage)
                        .arg("")
                        .arg("")
diff --git a/src/appmanagerwidget.cpp b/src/appmanagerwidget.cpp
index 5c4cfac0e827b1caddc8a2f89bd4599449d5eed2..54b733b14504c287687aba57e2dcabaafec11a4c 100644
--- a/src/appmanagerwidget.cpp
+++ b/src/appmanagerwidget.cpp
@@ -852,13 +852,13 @@ QString AppManagerWidget::formateAppInfo(const AppInfo &info)
                         "桌面文件：%11\n执行命令：%12\n执行路径：%13\n依赖：%14\n描述：%15\n\n")
                     .arg(info.desktopInfo.appName)
                     .arg(info.installedPkgInfo.pkgName)
-                    .arg(info.installedPkgInfo.installedSize ? formatBytes(info.installedPkgInfo.installedSize * 1024, 2) : "0 B")
+                    .arg(info.installedPkgInfo.installedSize ? formatBytes(info.installedPkgInfo.installedSize * 1024, 2) : "0B")
                     .arg(info.installedPkgInfo.updatedTime)
                     .arg(info.installedPkgInfo.maintainer)
                     .arg(info.installedPkgInfo.arch)
                     .arg(info.installedPkgInfo.version)
                     .arg(info.installedPkgInfo.downloadUrl)
-                    .arg(info.installedPkgInfo.pkgSize ? formatBytes(info.installedPkgInfo.pkgSize, 1) : "0 B")
+                    .arg(info.installedPkgInfo.pkgSize ? formatBytes(info.installedPkgInfo.pkgSize, 1) : "0B")
                     .arg(info.installedPkgInfo.homepage)
                     .arg(info.desktopInfo.desktopPath)
                     .arg(info.desktopInfo.exec)
diff --git a/src/common/appmanagercommon.cpp b/src/common/appmanagercommon.cpp
index dd3d7456736225d13d54cd0d14bacd250f3eb228..08aa8c01035bccdbdc520188016f6ccb52fcfe3e 100644
--- a/src/common/appmanagercommon.cpp
+++ b/src/common/appmanagercommon.cpp
@@ -52,23 +52,52 @@ void AM::popupNormalSysNotify(const QString &summary, const QString &body)
     proc.startDetached("notify-send", {"-a", "com.github.ccc-app-manager", summary, body});
 }
 
+// 移除字符串结尾的"0"和"."
+void rmZeroAndDotOfTail(QString &str)
+{
+    QString retStr;
+    int zeroCountOfTail = 0;
+    for(QString::const_reverse_iterator cIter = str.rbegin(); cIter != str.rend(); ++cIter) {
+        if ('0' == *cIter) {
+            zeroCountOfTail++;
+            continue;
+        }
+        break;
+    }
+
+    str.remove(str.size() - zeroCountOfTail, zeroCountOfTail);
+    if (str.endsWith(".")) {
+        str.remove(str.size() - 1, 1);
+    }
+
+    if (str.isEmpty()) {
+        str = "0";
+    }
+}
+
 // 格式化容量
 QString AM::formatBytes(qint64 input, int prec)
 {
-    QString flowValueStr;
+    QString flowValueStr, unitStr;
     if (KB_COUNT > input) {
-        flowValueStr = QString::number(input / 1, 'd', prec) + " B";
+        flowValueStr = QString::number(input / 1, 'd', prec);
+        unitStr = "B";
     } else if (MB_COUNT > input) {
-        flowValueStr = QString::number(input / KB_COUNT + double(input % KB_COUNT) / KB_COUNT, 'd', prec) + " KB";
+        flowValueStr = QString::number(input / KB_COUNT + double(input % KB_COUNT) / KB_COUNT, 'f', prec);
+        unitStr = "KB";
     } else if (GB_COUNT > input) {
-        flowValueStr = QString::number(input / MB_COUNT + double(input % MB_COUNT) / MB_COUNT, 'd', prec) + " MB";
+        flowValueStr = QString::number(input / MB_COUNT + double(input % MB_COUNT) / MB_COUNT, 'f', prec);
+        unitStr = "MB";
     } else if (TB_COUNT > input) {
-        flowValueStr = QString::number(input / GB_COUNT + double(input % GB_COUNT) / GB_COUNT, 'd', prec) + " GB";
+        flowValueStr = QString::number(input / GB_COUNT + double(input % GB_COUNT) / GB_COUNT, 'f', prec);
+        unitStr = "GB";
     } else {
         // 大于TB单位
-        flowValueStr = QString::number(input / TB_COUNT + double(input % TB_COUNT) / TB_COUNT, 'd', prec) + " TB";
+        flowValueStr = QString::number(input / TB_COUNT + double(input % TB_COUNT) / TB_COUNT, 'f', prec);
+        unitStr = "TB";
     }
-    return flowValueStr;
+    rmZeroAndDotOfTail(flowValueStr);
+    return flowValueStr + unitStr;
 }
 
 bool AM::judgePkgIsInstalledFromStr(const QString &str)