我能够调整我的列，但是我的编码问题出现在我的＆＃34;％＆＃34;将不会连接到百分比变量。
这是我对输出/对齐的编码：
//HEADER
outFile << left << setfill(' ') << setw(15) << "Member Name"
<< setfill(' ') << setw(20) << "Portion Achieved"
<< setfill(' ') << setw(12) << "Grade (%)"
<< setfill(' ') << setw(15) << "Letter Grade"
<< setfill(' ') << setw(15) << "Comment" << endl;
while (count <= 6)
{
cout << "Enter Name: ";
cin >> student.name;
cout << "Points Achieved: ";
cin >> student.points;
cout << "\n";
decimal = (student.points/60);
percent = decimal*100;
outFile << left << setfill(' ') << setw(15) << student.name
<< setfill(' ') << setw(20) << decimal
<< setfill(' ') << setw(12) << percent << " %"
<< setfill (' ') << setw(15);
这是输出的外观：
Member Name Portion Achieved Grade (%) Letter Grade Comment
Min 0.166667 16 %F Sorry, you did not pass :(
Carmela 0.333333 33 %F Sorry, you did not pass :(
Jayson 0.5 50 %F Sorry, you did not pass :(
Kristin 0.666667 66 %D Needs Improvement!
Mae 0.833333 83 %B Well Done!
JT 1 100 %A Excellent!
VS我希望它看起来如何：
Member Name Portion Achieved Grade (%) Letter Grade Comment
Min 0.166667 16% F Sorry, you did not pass :(
Carmela 0.333333 33% F Sorry, you did not pass :(
Jayson 0.5 50% F Sorry, you did not pass :(
Kristin 0.666667 66% D Needs Improvement!
Mae 0.833333 83% B Well Done!
JT 1 100% A Excellent!
答案 0 :(得分：1)
它正在做你告诉它要做的事情。整数<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Browser Tests</title>
<link href="https://cdn.rawgit.com/mochajs/mocha/v3.4.1/mocha.css" rel="stylesheet"/>
<script src="https://cdn.rawgit.com/mochajs/mocha/v3.4.1/mocha.js"></script>
<script src="http://sinonjs.org/releases/sinon-2.2.0.js"></script>
<script src="../node_modules/systemjs/dist/system.js"></script>
<style>
#errors pre {
width: 50em;
margin: 2em 4em;
padding: 1em;
border: 1px solid red;
}
</style>
</head>
<body>
<div id="errors"></div>
<div id="mocha"></div>
<script>
/*global SystemJS */
mocha.setup('bdd');
// This hack switches the system-dependent components so that require()
// statements for modules with node.js specific code are exchanged for their
// browser versions.
const resolveOrig = SystemJS.constructor.prototype.resolve;
SystemJS.constructor.prototype.resolve = function (key, parents) {
return resolveOrig.call(SystemJS, key.replace('-nodejs.js', '-browser.js'), parents);
};
// ======================================================
// RELEVANT SECTION (what I tried)
// THIS WORKS:
SystemJS.set('sinon', SystemJS.newModule(sinon));
// THIS DOES NOT WORK:
SystemJS.set('systemjs', SystemJS.newModule(SystemJS));
// ======================================================
// These are the test scripts in ./test/ that I want to run in the browser
const mochaTestScripts = [
// ... ABRIDGED LIST ....
'crypto-helpers',
'map-query',
'object-helpers',
'storage'
];
SystemJS.config({
map: {
'chai': '../node_modules/chai/chai.js',
'chai-as-promised': '../node_modules/chai-as-promised/lib/chai-as-promised.js',
// dependency of chai-as-promised
'check-error': '../node_modules/check-error/check-error.js',
'js-sha256': '../node_modules/js-sha256/build/sha256.min.js'
}
});
Promise.all(
mochaTestScripts.map(testScript =>
SystemJS.import('./' + testScript + '-test.js')
.catch(err => {
const div = document.getElementById('errors');
const pre = document.createElement('pre');
pre.appendChild(document.createTextNode('Test: ' + testScript + '\n\n' + err));
div.appendChild(pre);
})
)
)
.then(() => {
mocha.checkLeaks();
mocha.globals([]);
mocha.run();
})
.catch(err => {
const div = document.getElementById('errors');
const pre = document.createElement('pre');
pre.appendChild(document.createTextNode('GLOBAL ERROR\n' + err));
div.appendChild(pre);
});
</script>
</body>
</html>值的宽度为12个字符。之后发生的任何事情都会发生。这里没有代码可以“连接”任何东西，C ++流中也不存在任何这样的特性。
您可能需要将percent（伪代码）预先构造为字符串，然后使用该单个字符串作为列值。也许：
percent + " %"否则，请自行删除<< setfill(' ') << setw(12) << (std::to_string(percent) + " %")
并写入 n 空格。要做到这一点，你需要弄清楚你的字符串setw文本的“长”程度，加2（对于“％”）然后从12中减去该批次。将percent写入流。呸！