diff --git a/docs/source/Module/explain_-R.rst_ b/docs/source/Module/explain_-R.rst_
index 90b99cf..58675bf 100644
--- a/docs/source/Module/explain_-R.rst_
+++ b/docs/source/Module/explain_-R.rst_
@@ -1,4 +1,4 @@
 .. _-R:
 
-**-R**\ *r1,r2,...*
-    震中距 (km)。多个震中距使用逗号分隔。
\ No newline at end of file
+**-R**\ *file*\|\ *r1,r2,...*
+    震中距 (km)。可以传入逗号分隔的多个震中距，或者仅含有一列震中距的文件 *file* 。
\ No newline at end of file
diff --git a/docs/source/Module/greenfn.rst b/docs/source/Module/greenfn.rst
index 969cc03..74d6c12 100644
--- a/docs/source/Module/greenfn.rst
+++ b/docs/source/Module/greenfn.rst
@@ -13,7 +13,7 @@ greenfn
 |-M|\ *model*
 |-D|\ *depsrc/deprcv*
 |-N|\ *nt/dt*\ [**+w**\ *zeta*][**+n**\ *fac*]
-|-R|\ *r1,r2,...*
+|-R|\ *file*\|\ *r1,r2,...*
 |-O|\ *outdir*
 [ |-H|\ *f1/f2* ]
 [ |-L|\ *args* ]
diff --git a/docs/source/Module/travt.rst b/docs/source/Module/travt.rst
index 4d1063c..3783b70 100644
--- a/docs/source/Module/travt.rst
+++ b/docs/source/Module/travt.rst
@@ -12,7 +12,7 @@ travt
 **grt travt**
 |-M|\ *model*
 |-D|\ *depsrc/deprcv*
-|-R|\ *r1,r2,...*
+|-R|\ *file*\|\ *r1,r2,...*
 
 
 描述
diff --git a/example/multi_traces/run1.sh b/example/multi_traces/run1.sh
index 14e2056..af8bd0b 100755
--- a/example/multi_traces/run1.sh
+++ b/example/multi_traces/run1.sh
@@ -1,7 +1,9 @@
 #!/bin/bash 
 
 # 震中距数组
-distarr=($(seq -f "%.2f" 0.5 0.01 1.5  | tr '\n' ','))
+# 输出到文件
+seq -f "%.2f" 0.5 0.01 1.5 > dists
+distarr=($(cat dists | tr '\n' ','))
 distarr=${distarr%,}  # 删除最后的逗号
 
 # 震源台站都在地表
@@ -16,4 +18,7 @@ modname="mod1"
 out="GRN"
 
 # compute Green's Functions
-grt greenfn -M${modname} -O${out} -N${nt}/${dt} -D${depsrc}/${deprcv} -R${distarr} -Gv  # 只生成垂直力源的格林函数
+# OPTION-1: input distances array
+# grt greenfn -M${modname} -O${out} -N${nt}/${dt} -D${depsrc}/${deprcv} -R${distarr} -Gv  # 只生成垂直力源的格林函数
+# OPTION-2: 
+grt greenfn -M${modname} -O${out} -N${nt}/${dt} -D${depsrc}/${deprcv} -Rdists -Gv  # 只生成垂直力源的格林函数
diff --git a/pygrt/C_extension/include/grt/common/const.h b/pygrt/C_extension/include/grt/common/const.h
index 2ab901b..7f5ccaa 100755
--- a/pygrt/C_extension/include/grt/common/const.h
+++ b/pygrt/C_extension/include/grt/common/const.h
@@ -80,6 +80,8 @@ typedef int MYINT;  ///< 整数
 
 #define GRT_COMMENT_HEAD  '#'   ///< # 号， 作为注释的字符
 
+#define GRT_NUM_STR "0123456789"   ///< 包括所有数字的字符串宏
+
 #define GRT_MAX(a, b) ((a) > (b) ? (a) : (b))  ///< 求两者较大值
 #define GRT_MIN(a, b) ((a) < (b) ? (a) : (b))  ///< 求两者较小值
 
diff --git a/pygrt/C_extension/include/grt/common/util.h b/pygrt/C_extension/include/grt/common/util.h
index 7af79f5..fc63671 100644
--- a/pygrt/C_extension/include/grt/common/util.h
+++ b/pygrt/C_extension/include/grt/common/util.h
@@ -22,10 +22,31 @@
  * @param[in]     delim      分隔符
  * @param[out]    size       分割后的子字符串数组长度
  * 
- * @return   split    子字符串数组
+ * @return   子字符串数组
  */
 char ** grt_string_split(const char *string, const char *delim, int *size);
 
+/**
+ * 从文本文件中，将每行内容读入字符串数组
+ * 
+ * @param[in,out]     fp       文件指针
+ * @param[out]        size     读入的字符串数组长度
+ * 
+ * @return   字符串数组
+ * 
+ */
+char ** grt_string_from_file(FILE *fp, int *size);
+
+/**
+ * 判断字符串是否由特定的若个字符组成（充分条件）
+ * 
+ * @param[in]    str      待检查的字符串
+ * @param[in]    alws     允许的字符集合
+ * 
+ * @return  是否符合
+ */
+bool grt_string_composed_of(const char *str, const char *alws);
+
 /**
  * 指定分隔符，获得字符串的分割出的子字符串数。
  * 相当于是 grt_string_split 函数的简化版本
diff --git a/pygrt/C_extension/src/common/util.c b/pygrt/C_extension/src/common/util.c
index 6dcebf7..754969b 100644
--- a/pygrt/C_extension/src/common/util.c
+++ b/pygrt/C_extension/src/common/util.c
@@ -43,6 +43,42 @@ char ** grt_string_split(const char *string, const char *delim, int *size)
     return s_split;
 }
 
+char ** grt_string_from_file(FILE *fp, int *size){
+    char **s_split = NULL;
+    *size = 0;
+    s_split = (char**)realloc(s_split, sizeof(char*)*(*size+1));
+    s_split[*size] = NULL;
+
+    size_t len=0;
+    while(grt_getline(&s_split[*size], &len, fp) != -1){
+        s_split[*size][strlen(s_split[*size])-1] = '\0';  // 换行符换为终止符
+        (*size)++;
+        s_split = (char**)realloc(s_split, sizeof(char*)*(*size+1));
+        s_split[*size] = NULL;
+    }
+    return s_split;
+}
+
+bool grt_string_composed_of(const char *str, const char *alws){
+    bool allowed[256] = {false};  // 初始全为false（不允许）
+
+    // 标记允许的字符
+    for (int i = 0; alws[i] != '\0'; i++) {
+        unsigned char c = alws[i];  // 转为无符号避免负数索引
+        allowed[c] = true;
+    }
+
+    // 检查目标字符串中的每个字符
+    for (int i = 0; str[i] != '\0'; i++) {
+        unsigned char c = str[i];
+        if (!allowed[c]) {  // 若字符不在允许集合中
+            return false;
+        }
+    }
+
+    // 所有字符均在允许集合中
+    return true;
+}
 
 int grt_string_ncols(const char *string, const char* delim){
     int count = 0;
diff --git a/pygrt/C_extension/src/dynamic/grt_greenfn.c b/pygrt/C_extension/src/dynamic/grt_greenfn.c
index 41bb403..5ec1ae9 100644
--- a/pygrt/C_extension/src/dynamic/grt_greenfn.c
+++ b/pygrt/C_extension/src/dynamic/grt_greenfn.c
@@ -652,7 +652,16 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
             case 'R':
                 Ctrl->R.active = true;
                 Ctrl->R.s_raw = strdup(optarg);
-                Ctrl->R.s_rs = grt_string_split(optarg, ",", &Ctrl->R.nr);
+                // 如果输入仅由数字、小数点和间隔符组成，则直接读取
+                if(grt_string_composed_of(optarg, GRT_NUM_STR ".,")){
+                    Ctrl->R.s_rs = grt_string_split(optarg, ",", &Ctrl->R.nr);
+                } 
+                // 否则从文件读取
+                else {
+                    FILE *fp = GRTCheckOpenFile(command, optarg, "r");
+                    Ctrl->R.s_rs = grt_string_from_file(fp, &Ctrl->R.nr);
+                    fclose(fp);
+                }
                 // 转为浮点数
                 Ctrl->R.rs = (MYREAL*)realloc(Ctrl->R.rs, sizeof(MYREAL)*(Ctrl->R.nr));
                 for(MYINT i=0; i<Ctrl->R.nr; ++i){
diff --git a/pygrt/C_extension/src/travt/grt_travt.c b/pygrt/C_extension/src/travt/grt_travt.c
index ddf24f1..a2fa378 100644
--- a/pygrt/C_extension/src/travt/grt_travt.c
+++ b/pygrt/C_extension/src/travt/grt_travt.c
@@ -492,7 +492,16 @@ static void getopt_from_command(GRT_MODULE_CTRL *Ctrl, int argc, char **argv){
             // 震中距数组，-Rr1,r2,r3,r4 ...
             case 'R':
                 Ctrl->R.active = true;
-                Ctrl->R.s_rs = grt_string_split(optarg, ",", &Ctrl->R.nr);
+                // 如果输入仅由数字、小数点和间隔符组成，则直接读取
+                if(grt_string_composed_of(optarg, GRT_NUM_STR ".,")){
+                    Ctrl->R.s_rs = grt_string_split(optarg, ",", &Ctrl->R.nr);
+                } 
+                // 否则从文件读取
+                else {
+                    FILE *fp = GRTCheckOpenFile(command, optarg, "r");
+                    Ctrl->R.s_rs = grt_string_from_file(fp, &Ctrl->R.nr);
+                    fclose(fp);
+                }
                 // 转为浮点数
                 Ctrl->R.rs = (MYREAL*)realloc(Ctrl->R.rs, sizeof(MYREAL)*(Ctrl->R.nr));
                 for(MYINT i=0; i<Ctrl->R.nr; ++i){