reg sck; reg sck_r0,sck_r1; wire sck_n,sck_p; always@(posedge clk or negedge rst_n) begin if(!rst_n) begin sck_r0 <= 1'b1; //sck of the idle state is high sck_r1 <= 1'b1; end else begin sck_r0 <= SCK; sck_r1 <= sck...
给你一个在Javascript裏面的表示方法: var G=document.getElementById; function checkNumber(){ var reg = /^(?:0|[1-9][0-9]?|100)$/; var strNumber = G("txtNumber").value; alert(reg.test(strNumber)) } CheckNumber 裏面用到的正则表达式,在其他...
获取url中的参数值 //获取url中的参数值 function getParameter(name){ var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");?//构建一个含有目标参数的正则表达式对象 var r = window.location.search.substr(1).match...