# Functions

测试拷贝切片时遍历和内置函数性能差异.
测试拷贝切片时遍历和内置函数性能差异.
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下面函数输出什么? */.
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下面函数输出什么? */.
关于下面函数的描述,正确的是? 单选: - A: append函数在操作切片s和s1时发生了扩容 - B: 编译错误,不可以对切片元素取址 - C: 函数输出"true" - D: 函数输出"false" */.
make不指定空间时,空间默认等于长度.
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下面函数输出什么? 单选: - A: [2, 3] [2, 3, 4] - B: [1, 2] [1, 2, 3] - C: [1, 2] [2, 3, 4] - D: [2, 3, 1] [2, 3, 4, 1] */.