JavaScript基础知识(二)
11 格式化字串 1: <script language=”JavaScript”> 2: <!-- 3: var myVariable = “Hello there”; 4: document.write(myVariable.big() + “<br>”); 5: document.write(myVariable.blink() + “<br>”); 6: document.write(myVariable.bold() + “<br>”); 7: document.write(myVariable.fixed() + “<br>”); 8: document.write(myVariable.fontcolor(“red”) + “<br>”); 9: document.write(myVariable.fontsize(“18pt”) + “<br>”); 10: document.write(myVariable.italics() + “<br>”); 11: document.write(myVariable.small() + “<br>”); 12: document.write(myVariable.strike() + “<br>”); 13: document.write(myVariable.sub() + “<br>”); 14: document.write(myVariable.sup() + “<br>”); 15: document.write(myVariable.toLowerCase() + “<br>”); 16: document.write(myVariable.toUpperCase() + “<br>”); 17: 18: var firstString = “My String”; 19: var finalString = firstString.bold().toLowerCase().fontcolor(“red”); 20: // --> 21: </script> 12 建立数组 1: <script language=”JavaScript”> 2: <!-- 3: var myArray = new Array(5); 4: myArray[0] = “First Entry”; 5: myArray[1] = “Second Entry”; 6: myArray[2] = “Third Entry”; 7: myArray[3] = “Fourth Entry”; 8: myArray[4] = “Fifth Entry”; 9: var anotherArray = new Array(“First Entry”,”Second Entry”,”Third Entry”,”Fourth Entry”,”Fifth Entry”); 10: // --> 11: </script> 13 数组排序 1: <script language=”JavaScript”> 2: <!-- 3: var myArray = new Array(5); 4: myArray[0] = “z”; 5: myArray[1] = “c”; 6: myArray[2] = “d”; 7: myArray[3] = “a”; 8: myArray[4] = “q”; 9: document.write(myArray.sort()); 10: // --> 11: </script> 14 分割字符串 1: <script language=”JavaScript”> 2: <!-- 3: var myVariable = “a,b,c,d”; 4: var stringArray = myVariable.split(“,”); 5: document.write(stringArray[0]); 6: document.write(stringArray[1]); 7: document.write(stringArray[2]); 8: document.write(stringArray[3]); 9: // --> 10: </script> 15 弹出警告信息 1: <script language=”JavaScript”> 2: <!-- 3: window.alert(“Hello”); 4: // --> 5: </script> 16 弹出确认框 1: <script language=”JavaScript”> 2: <!-- 3: var result = window.confirm(“Click OK to continue”); 4: // --> 5: </script> 17 定义函数 1: <script language=”JavaScript”> 2: <!-- 3: function multiple(number1,number2) { 4: var result = number1 * number2; 5: return result; 6: } 7: // --> 8: </script> 18 调用JS函数 1: <a href=”#” onClick=”functionName()”>Link text</a> 2: <a href="/”javascript:functionName"()”>Link text</a> 19 在页面加载完成后执行函数 1: <body onLoad=”functionName();”> 2: Body of the page 3: </body> 20 条件判断 1: <script> 2: <!-- 3: var userChoice = window.confirm(“Choose OK or Cancel”); 4: var result = (userChoice == true) ? “OK” : “Cancel”; 5: document.write(result); 6: // --> 7: </script>
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