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<meta charset="UTF-8" />
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<title>Document</title>
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<body>
数据类型转换
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<script>
//字符转数字
var str = "123";
console.log(typeof str);
console.log(str);
var num01 = parseInt(str);
console.log(num01);
console.log(typeof num01);
//数字转字符
var str01 = num01.toString();
console.log(str01);
console.log(typeof str01);
</script>
</html>