diff --git a/src/components/renderer/RendererLine.js b/src/components/renderer/RendererLine.js
index 52241bb..a01917d 100644
--- a/src/components/renderer/RendererLine.js
+++ b/src/components/renderer/RendererLine.js
@@ -163,6 +163,52 @@ function listPoints(qrcode, params) {
                 }
 
                 if (type === 3) {
+                    if (x > y ^ x + y < nCount) {
+                        if (y === 0 || (y > 0 && (!qrcode.isDark(x, y - 1) || !ava2[x][y - 1]))) {
+                            let start = 0;
+                            let end = 0;
+                            let ctn = true;
+                            while (ctn && y + end < nCount) {
+                                if (qrcode.isDark(x, y + end) && ava2[x][y + end] && end - start <=3) {
+                                    end++;
+                                } else {
+                                    ctn = false;
+                                }
+                            }
+                            if (end - start > 1) {
+                                for (let i = start; i < end; i++) {
+                                    ava2[x][y + i] = false;
+                                    available[x][y + i] = false;
+                                }
+                                pointList.push(<line opacity={opacity} x1={x + 0.5} y1={y + 0.5} x2={x + 0.5} y2={y + end - start - 1 + 0.5} strokeWidth={size} stroke={otherColor} strokeLinecap="round" key={id++}/>)
+                            }
+                        }
+                    } else {
+                        if (x === 0 || (x > 0 && (!qrcode.isDark(x - 1, y) || !ava2[x - 1][y]))) {
+                            let start = 0;
+                            let end = 0;
+                            let ctn = true;
+                            while (ctn && x + end < nCount) {
+                                if (qrcode.isDark(x + end, y) && ava2[x + end][y] && end - start <=3) {
+                                    end++;
+                                } else {
+                                    ctn = false;
+                                }
+                            }
+                            if (end - start > 1) {
+                                for (let i = start; i < end; i++) {
+                                    ava2[x + i][y] = false;
+                                    available[x + i][y] = false;
+                                }
+                                pointList.push(<line opacity={opacity} x1={x + 0.5} y1={y + 0.5} x2={x + end - start - 0.5} y2={y + 0.5} strokeWidth={size} stroke={otherColor} strokeLinecap="round" key={id++}/>)
+                            }
+                        }
+                    }
+                    if (available[x][y]) {
+                        pointList.push(<circle opacity={opacity} r={size / 2} key={id++} fill={otherColor} cx={x + 0.5} cy={y + 0.5}/>)
+                    }
+                }
+                if (type === 4) {
                     if (y === 0 || x === 0 || ((y > 0 && x > 0) && (!qrcode.isDark(x - 1, y - 1) || !ava2[x - 1][y - 1]))) {
                         let start = 0;
                         let end = 0;
@@ -186,8 +232,7 @@ function listPoints(qrcode, params) {
                         pointList.push(<circle opacity={opacity} r={size / 2} key={id++} fill={otherColor} cx={x + 0.5} cy={y + 0.5}/>)
                     }
                 }
-
-                if (type === 4) {
+                if (type === 5) {
                     if (x === 0 || y === nCount - 1 || ((x > 0 && y < nCount - 1) && (!qrcode.isDark(x - 1, y + 1) || !ava2[x - 1][y + 1]))) {
                         let start = 0;
                         let end = 0;
@@ -211,7 +256,7 @@ function listPoints(qrcode, params) {
                         pointList.push(<circle opacity={opacity} r={size / 2} key={id++} fill={otherColor} cx={x + 0.5} cy={y + 0.5}/>)
                     }
                 }
-                if (type === 5) {
+                if (type === 6) {
                     if (x === 0 || y === nCount - 1 || ((x > 0 && y < nCount - 1) && (!qrcode.isDark(x - 1, y + 1) || !ava2[x - 1][y + 1]))) {
                         let start = 0;
                         let end = 0;
@@ -267,6 +312,7 @@ function getParamInfoLine() {
                 "左右",
                 "上下",
                 "纵横",
+                "回环",
                 "左上 — 右下",
                 "右上 — 左下",
                 "交叉"
@@ -311,11 +357,12 @@ function getParamInfoLine2() {
         {
             type: ParamTypes.SELECTOR,
             key: '连线方向',
-            default: 5,
+            default: 6,
             choices: [
                 "左右",
                 "上下",
                 "纵横",
+                "回环",
                 "左上 — 右下",
                 "右上 — 左下",
                 "交叉"