qingyezhu

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摘要： 1Which of the following fragments might cause errors? (5%) A. String s = “Gone with the wind”; String t = ” good “; String k = s + t; 可以，String重载了+ 运算符 B. String s = “Gone with the wind”; String t; t = s[3] + “one”; 不可以，s[3]表示的是字符串数组s,而这里是字符串s。 C. String s = “Gone with the wind”; String st... 阅读全文