std::iter::repeat('x').take(len).collect::<String>()来源:https://users.rust-lang.org/t/fill-string-with-repeated-character/1121
	Except as otherwise noted, this blog is licensed under CC BY-SA 4.0 License.
	
	©2021-
	
	    searchstar
	
	
	
		|
		
			pv
			
		
		|
		 
			uv
			
		
	
	
	Theme Tree
	by Wu Jun
	Powered by Hexo