diff --git a/README.md b/README.md
index d85f49a..bc40ea9 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
     支持字符串、整形、长整型、浮点型.
     注释是"//"、"#"、";".
     支持等号右有若干空格.
-    不再支持单一右边所有字符,支持两种格式一种是带引号和不带引号的key
+    支持单一右边所有字符,支持两种格式一种是带引号和不带引号的key
     
 # build
     git clone https://github.com/niuyuling/libini
diff --git a/config.ini b/config.ini
index af12dc0..dd2a69c 100644
--- a/config.ini
+++ b/config.ini
@@ -9,4 +9,5 @@ c    =    1.223445446
 
 [TAC]
 e = abcdef!@#$%^&*()_+
-f=123
\ No newline at end of file
+f=123
+
diff --git a/libini.c b/libini.c
index 1836521..edb3d2d 100644
--- a/libini.c
+++ b/libini.c
@@ -42,8 +42,30 @@ char *del_space(char *str, char *buf)
     return buf;
 }
 
+// 创建临时内存
+int libini_memory(char **pp)
+{
+    if (pp != NULL) {
+        char *tmp = (char *)malloc(BUFFER_SIZE);
+        if (tmp != NULL) {
+            *pp = tmp; // pp的地址指向tmp
+            return 1;
+        }
+    }
+    return -1;
+}
+
+// 释放临时内存
+void libini_free(char *p)
+{
+    if (p != NULL) {
+        free(p);
+    }
+}
+
 int getinikeystring(char *title, char *key, char *filename, char *buf)
 {
+    bzero(buf, 0);
     FILE *fp;
     int flag = 0;
     char sTitle[BUFFER_SIZE], *wTmp;
diff --git a/libini.h b/libini.h
index 3b434da..ef1459b 100644
--- a/libini.h
+++ b/libini.h
@@ -1,9 +1,12 @@
 #ifndef LIBINI_H
+#define LIBINI_H
 
 int getinikeystring(char *title, char *key, char *filename, char *buf);
 int putinikeystring(char *title, char *key, char *val, char *filename);
 int getinikeyint(char *title, char *key, char *filename);
 long getinikeylong(char *title, char *key, char *filename);
 float getinikeyfloat(char *title, char *key, char *filename);
+int libini_memory(char **pp);
+void libini_free(char *p);
 
 #endif
diff --git a/test.c b/test.c
index 0c42524..db20fb1 100644
--- a/test.c
+++ b/test.c
@@ -4,33 +4,26 @@
 
 int main(void)
 {
-    char buf[50];
-    memset(buf, 0, 50);
-    getinikeystring("CAT", "age", "config.ini", buf); // 字符串
-    printf("%s\n", buf);
+    char *tmp = NULL;
+    libini_memory(&tmp);    // 创建内存
     
-    memset(buf, 0, 50);
-    getinikeystring("CAT", "name", "config.ini", buf); // 字符串
-    printf("%s\n", buf);
-    memset(buf, 0, 50);
+    getinikeystring("CAT", "age", "config.ini", tmp); // 字符串
+    printf("%s\n", tmp);
+    
+    getinikeystring("CAT", "name", "config.ini", tmp); // 字符串
+    printf("%s\n", tmp);
 
     printf("%d\n", getinikeyint("CAT", "a", "config.ini")); // 整型
-    memset(buf, 0, 50);
     printf("%ld\n", getinikeylong("CAT", "b", "config.ini")); // 长整型
-    memset(buf, 0, 50);
     printf("%f\n", getinikeyfloat("CAT", "c", "config.ini")); // 浮点型（默认小数点后6位）
-    memset(buf, 0, 50);
 
     putinikeystring("TAC", "e", " abcdef!@#$%^&*()_+", "config.ini"); // 写入
-    getinikeystring("TAC", "e", "config.ini", buf);
-    printf("%s\n", buf);
-    memset(buf, 0, 50);
+    getinikeystring("TAC", "e", "config.ini", tmp);
+    printf("%s\n", tmp);
 
-    getinikeystring("TAC", "f", "config.ini", buf);
-    printf("%s\n", buf);
-    memset(buf, 0, 50);
+    getinikeystring("TAC", "f", "config.ini", tmp);
+    printf("%s\n", tmp);
     
-    printf("%d\n", getinikeystring("CAT", "age", "config.ini", buf));
-
+    libini_free(tmp);
     return 1;
 }