打印輸出str的每個字符，且字符以空格隔開
public?static?void?main(String[]?args)?{
String?str?=?"msjsjksla";
System.out.println(str);
strPrint(str);
}
//打印輸出str的每個字符，且字符以空格隔開
public?static?void?strPrint(String?str){
Oliverrrrrr
2016-12-27
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2017-02-27
//好像這樣可以，這一塊(StringBuffer類 ，chartAt(index))是字符串的知識
StringBuffer sb = new StringBuffer(str);
for(int i=0;i<str.length();i++)
{
System.out.print(sb.charAt(i)+"\t");
}
2016-12-27
????String str = "hello";
????System.out.println(str.length());
????for(int i=0 ; i<str.length(); i++){
????????char a = str.charAt(i);
????????System.out.print(a);
????????System.out.print(' ');
????}