String.prototype.format =
function(args) {
var result =
this;
if (arguments.length > 0
) {
if (arguments.length == 1 &&
typeof (args) == "object"
) {
for (
var key
in args) {
if(args[key]!==
undefined){
var reg =
new RegExp("({" + key + "})", "g"
);
result =
result.replace(reg, args[key]);
}
}
}
else {
for (
var i = 0; i < arguments.length; i++
) {
if (arguments[i] !==
undefined) {
//var reg = new RegExp("({[" + i + "]})", "g");//这个在索引大于9时会有问题
var reg2=
new RegExp("({)" + i + "(})", "g"
);
result =
result.replace(reg2, arguments[i]);
}
}
}
}
return result;
};
//两种调用方式 var template1="我是{0}，今年{1}了"; var template2="我是{name}，今年{age}了"; var result1=template1.format("loogn",22); var result2=template2.format({name:"loogn",age:22}); //两个结果都是"我是loogn，今年22了"
from：http://www.cnblogs.com/loogn/archive/2011/06/20/2085165.html
转载于:https://www.cnblogs.com/wteng/p/6525986.html
