0_0_30566485_17017\Main.java:21: 错误: 不是语句 sb111.delete0, sb111.length()); ^ 0_0_30566485_17017\Main.java:21: 错误: 需要';' sb111.delete0, sb111.length()); ^ 0_0_30566485_17017\Main.java:21: 错误: 需要';' sb111.delete0, sb111.length()); ^ 3 个错误