-
遍历字符串
let str = "我要飞的更High"
for s in str {
print(s)
} -
字符串拼接
let str1 = "zhangsan"
let str2 = "lisi"
let i = 10
print(str1 + str2) // "zhangsanlisi\n"
print("(str1) (str2) (i)") // "zhangsan lisi 10\n"
设置
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let string0 = "我是个字符串" // 字符串判空 if string0.isEmpty { print("kong") } else { print("不空") } // 字符串插入 var string1 = "\(string0):长度\(string0.count)" print(string1)
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