如果以后写页面要这样拼串，我会疯掉，真的！！
已知var arr=["userName=admin","password=123456","sex=男","address=武汉"]
转化为：输出结果
（1） update from table(userName='admin',password='123456',sex='男',address='武汉')
（2） insert table(userName,password,sex,address) values('admin','123456','男','武汉')
<script>
var arr = ["userName=admin", "password=123456", "sex=男", "address=武汉"];
var arr1 = [];
var arr2 = [];
var arr3 = [];
var newArr = '';
for (i in arr) {
arr1 = arr[i].split('=');
//['userName', 'admin'] ['password', '123456'] ['sex', '男'] ['address', '武汉']
arr2 = arr1[0].split("'");
//['userName'] ['password'] ['sex'] ['address']
arr3 = arr1[1];
//admin 123456 男 武汉
newArr += (arr2.toString() + "='" + arr3 + "',");
}
document.write(`<p>update from table (${newArr.substr(0,newArr.length-1)})</p>`);
// （2） insert table(userName,password,sex,address) values('admin','123456','男','武汉')
var str1 = '';
var str2 = '';
var arr4 = [];
var arr5 = [];
var arr6 = [];
for (j in arr) {
arr4 = arr[j].split('=');
//['userName', 'admin'] ['password', '123456'] ['sex', '男'] ['address', '武汉']
arr5 = arr4[0] //.split("'");
//userName password sex address
arr6 = arr4[1];
//admin 123456 男 武汉
//console.log(arr6);
str1 += (arr5.toString() + ',');
//console.log(str1);
str2 += ("'" + arr6.toString() + "'" + ',');
//console.log(str2);
}
document.write(`<p>insert table (${str1.substr(0,str1.length-1)}) values (${str2.substr(0,str2.length-1)})</p>`);
</script>
运行结果如图：
update from table(userName='admin',passwrod='123456',sex='男',address='武汉')
insert table(userName,password,sex,address) values('admin',123456','男','武汉')
