diff --git a/shell/test/test.sh b/shell/test/test.sh
new file mode 100755
index 0000000..79688e3
--- /dev/null
+++ b/shell/test/test.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+round=0 #记录算了多少次
+
+while [ "$symbol" != '=' ] #用于持续接收用户输入的数字
+do
+	read -p "请输入数字:" number #用于接收用户数字
+	#计算乘除取余
+	if [ "$symbol" == "/" ];
+	then
+		number=$[ ${numberarr[$round]} / number ]
+	elif [ "$symbol" == "*" ];
+	then
+		number=$[ ${numberarr[$round]} * number ]
+	elif [ "$symbol" == "%" ];
+	then
+		number=$[ ${numberarr[$round]} % number ]
+	fi
+	#如果计算了就覆盖刚刚的结果
+	if [[ "$symbol" == "*" || "$symbol" == "/" || "$symbol" == "%" ]];
+	then
+		round=$[$round-1]
+	fi
+
+	read -p "请输入符号:" symbol #接收符号
+
+	#判断符号有没有出错
+	while [[ "$symbol" != "+" && "$symbol" != "-" && "$symbol" != "/" && "$symbol" != "*" && "$symbol" != "%" && "$symbol" != "=" ]];
+	do
+		read -p "请重新输入符号( + - * / % = )" symbol
+	done
+	#储存刚刚接收的数据
+	symbolarr[$[round]]=$symbol
+	numberarr[$[round]]=$number
+	round=$[$round+1]
+done
+ 
+round=0 #重置次数
+
+sum=${numberarr[$round]} #获取第一位数
+
+#进行最后的计算
+while [ "${symbolarr[$round]}" != "=" ]
+do
+	if [ "${symbolarr[$round]}" == "+" ];
+	then
+		sum=$[ "$sum" + "${numberarr[$[$round+1]]}" ]
+	else
+		sum=$[ "$sum" - "${numberarr[$[$round+1]]}" ]
+	fi
+	round=$[$round+1] #进行次数增加
+done
+
+echo "计算结果为$sum"