java stringתΪchar
java.lang.stringתΪchar
1.ʹcharAt(int index)ȡַָͨȡStringеضchar:String str; 2.ַStringÿַȡΪchar; 3.ַȫString emptyStr = "";if (!emptyStr.isEmpty()
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StringתΪchar JavaнStringתΪcharǷdzġ 1. ʹString.charAt(index)ֵΪcharԵõStringijһָλõchar 2. ʹString....
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