//获取字符串的长度String.prototype.getByteLength = function(){ var bytes=0,i=0; for (; i255 ) { ++bytes; } } return bytes;};/*函数调用方法*/var a ="aaa ^&*";var length = a.getByteLength();alert(length);
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//获取字符串的长度String.prototype.getByteLength = function(){ var bytes=0,i=0; for (; i255 ) { ++bytes; } } return bytes;};/*函数调用方法*/var a ="aaa ^&*";var length = a.getByteLength();alert(length);
转载于:https://www.cnblogs.com/csdttnk/p/3355005.html