var workContentReg = /^[\u4E00-\u9FA5]$/
		var s1 = '你';
		var s2 = 1;
		var s3 = '我a';
		var s4 = '，';
		var s5 = '！';
		console.log(">>>>>>>>>>>>>>>>>是否汉字s1="+workContentReg.test(s1))
		console.log(">>>>>>>>>>>>>>>>>是否汉字s2="+workContentReg.test(s2))
		console.log(">>>>>>>>>>>>>>>>>是否汉字s3="+workContentReg.test(s3))
		console.log(">>>>>>>>>>>>>>>>>是否汉字s4="+workContentReg.test(s4))
		console.log(">>>>>>>>>>>>>>>>>是否汉字s5="+workContentReg.test(s5))

true
false
false
false
false